Dispell
From The Five Pillars
Dispelling spells means using mana to remove them from your kingdom.
The amount of mana you need to dispell a spell depends on your spell_level compared to the enemy's spell_level and the base mana costs of the spell in question. (Base mana costs of a spell is the total casting costs in mana of the spell in question as displayed on help page.)
In order to calculate the mana neccessary to dispell a spell use the following formula:
caster SL / your SL * 2 * spell's base mana costs
It's also commonly said that the mana color you dispell with affect the mana cost.
So that for dispelling with allied color mana (allied to the color of the spell) you need
multiply the base mana cost by 1.1 and for opposite color mana 1.25.
Note1 : Some spells are undispellable!
Note2 : Spells cast by yourself take 0 mana to dispell.
Note3 : You may dispell with any combination of different mana sorts
Note4 : Spells can also be dispelled by attacking the caster (there is a chance of failing)
http://student.stunet.se/vector/t5p/calculator.html
<Lowres> Spell level - Spell level * 50 roughly
<MrLee> You dispelled the Flood with your 270000 Mana
<MrLee> You dispelled the Swamp Plague with your 20000 Mana
<MrLee> You dispelled the Frightening Howls with your 10000 Mana
<Lowres> Frightening Howls 4,000
<Lowres> Vegetational Decay 10,000
<Lowres> Swamp Plague 20,000
<Lowres> Eternal Winter 25,000
<Lowres> Flood 25,000
<MrLee> You dispelled the Vegetational Decay with your 13000 Mana
<Lowres> OK turns left?
<MrLee> 294
<Lowres> Spell level?
<MrLee> 351
<Lowres> 404 for me
<Lowres> I will do FH first
<Lowres> I reckon 6650 should work
<MrLee> I don't think it will
<Lowres> You cast Frightening Howls 1 times and that took 3 turns. on Dirk Chivers [#1833]
<MrLee> I think you will find the minimum possible dispell is 10 K for some reason
<Lowres> Their could be a minimum cost??
<MrLee> I think so, I thought FH should be cheaper then it is before
<MrLee> No Your right and Im wrong
<MrLee> You dispelled the Frightening Howls with your 6650 Mana
<Lowres> Nice
<Lowres> I will recast and try a bit lower
<MrLee> ok
<MrLee> I'll go 6600
<Lowres> Cast
<MrLee> You dispelled the Frightening Howls with your 6000 Mana
<Lowres> Using ST's dispell guide is starting to look very exspensive
<Lowres> Ok I'll try again
<MrLee> Yeah I never used it for the lvl system
<Lowres> Recast FH
<Lowres> exspensive Hey slurring on IRC
<Lowres> Will have to change my name to Ozzy
<MrLee> You dispelled the Frightening Howls with your 5000 Mana
<Lowres> Back on
<MrLee> You failed to dispel the Frightening Howls with your 4000 Mana.
<MrLee> You dispelled the Frightening Howls with your 4500 Mana
<Lowres> Back on
<Lowres> The hero Homer the Planeswalker is under your command
<Lowres> The hero Rong the Pilgrim is under your command
<Lowres> You gained 547 Wild, 1,402 Old, 0 Elemental, 0 Desert, 0 Natural Mana and gained 572,447
Gold, 144 Population and 11 XP.
<MrLee> You dispelled the Frightening Howls with your 4250 Mana
<Lowres> You cast Frightening Howls 1 times and that took 3 turns. on Dirk Chivers [#1833]
<Lowres> I am hoping if we get one exact it will work for the rest
<Lowres> But I am not sure abut that
<MrLee> You failed to dispel the Frightening Howls with your 4125 Mana.
<MrLee> You failed to dispel the Frightening Howls with your 4187 Mana.
<MrLee> You dispelled the Frightening Howls with your 4190 Mana
<MrLee> Well thats getting pretty close now
<Lowres> That will do
<Lowres> 190 mana above base cost
<Lowres> 53 spell diff
<Lowres> so 3.6 mana per level
<Lowres> VD should go for 10190
<MrLee> Hang on
<MrLee> I'll cast FH on you
<Lowres> OK
<MrLee> see if your formula works
<MrLee> with FH
<MrLee> ok on
<Lowres> You dispelled the Frightening Howls with your 3810 Mana
<Lowres> 4000-190
<Lowres> You can try again
<MrLee> Ok I put it back on
<Lowres> You failed to dispel the Frightening Howls with your 3809 Mana.
<Lowres> Either your spelllevel is too low, you used too little mana or the spell cannot be dispelled.
<MrLee> So it appears your spot on
<Lowres> Back off with 3810
<Lowres> 3.6 per level at a guess
<MrLee> ok Cast VD now then
<Lowres> try VD
<Lowres> who?
<MrLee> I suppose it doesn't matter
<Lowres> Me
<MrLee> Ok ion
<Lowres> me to
<Lowres> LOL
<MrLee> You ran mine
<Lowres> No barriers to start with
<Lowres> You dispelled the Vegetational Decay with your 9809 Mana
<Lowres> Even less than I thought
<MrLee> You dispelled the Vegetational Decay with your 101908 Mana
<MrLee> Ok back on
<Lowres> You dispelled the Vegetational Decay with your 9800 Mana
<Lowres> Hmm
<MrLee> Back on
<Lowres> and on you
<MrLee> You failed to dispel the Vegetational Decay with your 10159 Mana.
<Lowres> You dispelled the Vegetational Decay with your 9700 Mana
<MrLee> You dispelld mine you goose
<Lowres> 300 below base cost
<MrLee> You dispelld the one you cast on me
<Lowres> Oops
<MrLee> now try again on the one I cast on you
<Lowres> LOL
<Lowres> One at a time
<Lowres>
<MrLee>
<Lowres> You dispelled the Vegetational Decay with your 9700 Mana
<MrLee> nice
<Lowres> same result
<MrLee> back on
<Lowres> just thinking
<MrLee> ok
<Lowres> mayb it is a percentage of spell cost
<Lowres> maybe
<MrLee> maybe
<Lowres> 190/4000 = 4.75%
<MrLee> We should test 3.6 times SL + spell cost on EW and FL
<MrLee> if we know it works on them then atleast we have a working formula
<MrLee> thats guaranteed to dispell
<Lowres> so 10,000 would be 9525
<MrLee> yeah
<Lowres> You dispelled the Vegetational Decay with your 9524 Mana
<Lowres> Ok spell me up
<MrLee> EW and FL?
<Lowres> one at a time
<MrLee> ok on
<Lowres> You dispelled the Eternal Winter with your 24800 Mana
<Lowres> even less than the 3.6
<MrLee> Well atleast we know 3.6 is always going to work
<Lowres> try flood
<MrLee> Fl costs exactly the same so should be the same result
<Lowres> I have 82 research points
<MrLee> On
<Lowres> so can boost my spell level
<MrLee> ok
<Lowres> You dispelled the Flood with your 23688 Mana
<Lowres> failed with 23687
<Lowres> 5.25%
<Lowres> So I think the colour of the spell makes a difference
<Lowres> Being blue
<Lowres> Flood costs more
<Lowres> but not a lot more
<MrLee> ok question is
<MrLee> Is that because your blue or because Im blue
<Lowres> Well we can try Mr Eels reading test
<MrLee> because Im blue will mean the amount I have to spend on FL is a little more
<Lowres> but I need to lose some barriers first
<MrLee> ok I'll swap across
<MrLee> Ok EW on
<Lowres> SL?
<Lowres> me 310
<MrLee> 103
<Lowres> 310-103=207
<MrLee> Base cost of EW is 2500 but costs me 37500
<MrLee> Base cost of EW is 25000 but costs me 37500
<Lowres> 207*1.5=310
<Lowres> You dispelled the Eternal Winter with your 24690 Mana
<MrLee> So it cost a little more
<Lowres> try again
<MrLee> ok on
<Lowres> You dispelled the Eternal Winter with your 24000 Mana
<MrLee> ok on
<Lowres> You dispelled the Eternal Winter with your 23000 Mana
<MrLee> lol
<MrLee> on
<Lowres> You dispelled the Eternal Winter with your 20000 Mana
<MrLee> on
<Lowres> not on me
<Lowres> LOL
<MrLee> try now
<Lowres> OK
<MrLee> must not have refreshed properly
<Lowres> You dispelled the Eternal Winter with your 17000 Mana
<MrLee> on
<Lowres> You dispelled the Eternal Winter with your 10000 Man
<Lowres> Blue mages Rule
<MrLee> indeed
<MrLee> on
<Lowres> Obelisk is a great wonder
<MrLee>
<Lowres> failed on 9000
<Lowres>
<Lowres>
<Lowres> You dispelled the Eternal Winter with your 9500 Mana
<Lowres>
<Lowres>
<MrLee> I'll cast flood next
<Lowres> We need more Blue mages in ARM
<MrLee> see if thats as easy to dispell
<Lowres> IfI knew we were all going red I would have done
<Lowres>
<Lowres>
<Lowres> You dispelled the Eternal Winter with your 9500 Mana
<Lowres>
<Lowres>
<Lowres> You dispelled the Flood with your 9250 Mana
<MrLee> shit
<Lowres> ??
<MrLee> Dispelling is too cheap
<MrLee> cast it on me
<Lowres> Knowing what to do
<Lowres> and having a decent spell level
<Lowres> EW on
<Lowres> can't afford flood
<Lowres> BRB
<MrLee> You failed to dispel the Eternal Winter with your 32450 Mana.
<Lowres> and back
<Lowres> Nice
<MrLee> thats your SL - My SL * 3.6
<MrLee> + 25000
<Lowres> don't forget blue is not your base colour
<MrLee> Question is how much do I add
<Lowres> That is waht we are trying to find out
<MrLee> WTF
<MrLee> You dispelled the Eternal Winter with your 115000 Mana
<MrLee> It was all my red mana
<Lowres> That would do it
<Lowres> back on
<MrLee> You failed to dispel the Eternal Winter with your 70000 Mana.
<MrLee> You dispelled the Eternal Winter with your 80000 Mana <----- way over the 3.6 rule
<MrLee> failed at 70 k
<Lowres> Hmmm
<Lowres> Have the higher spell level for sure
<Lowres> thats huge man per spell lvl
<Lowres> mana
<MrLee> indeed
<Lowres> What would ST make it?
<MrLee> I dunno
<MrLee> I haven't looked at his formula in ages
<Lowres> How much time do you hav left?
<MrLee> well I gotta go
<MrLee>
<Lowres> OK
<Lowres> NP
It appeared to be the mana required was the cost of the spell modified by the colour of the mage dispelling and the difference in spell level.
I did think with the higher spell level you could knock 3.6 per spell level difference off the cost of the spell with the usual 1*5 for allied colour magic and 2* for opposed.
Thank you to ST for the formula below.
Main colour mana needed = 2 x (random factor) x (casterSL / dispellerSL) x min(1,(dispellerXPlevel / casterXPlevel)) x spellcost
This looks complicated, but I\'ll break it down for you (and give some examples). Main colour mana needed: this is the amount of mana (in your main colour) you will need to dispell the enemy spell on you. (random factor): this is a random (duh) number between 0.9 and 1.1. It\'s different everytime. To be on the safe side, I always use 1.1. (casterSL / dispellerSL): this is the Spell Level of the caster (the enemy) of the spell, divided by the Spell Level of the dispeller (you). You can find your Spell Level in the [Status] screen and you can see the Spell Level of the caster on the [Enchantments] screen. min(1,(dispellerXPlevel / casterXPlevel)): this looks tough, but it just means that if you are spelled by someone with a higher XP level than you, that you can use the difference in XP level to help you dispell. The maker of the game (Zeb) put this in to help newbies dispell spells cast on them by veterans. spellcost: the cost of the mana to cast this spell (25,000 for Eternal Winter and Flood, 20,000 for Swamp Plague, 10,500 for Vegetational Decay and 4,000 for Frightening Howls).
Now for some examples: Suppose Darkness has cast Eternal Winter on destroyer. Darkness has an XP level of 20, destroyer's XP level is 6. Darkness has a SL (Spell Level) of 420, destroyer's SL is only 60. Then: Main colour mana needed = 2 x 1.1 x (420/60) x (6/20) x 25000 = 4.62 x 25000 = 115,500. This means that destroyer can put in 115500 in the box next to 'Wild' and dispell the EW like that (same goes for Flood).
Another example: The brave LPP mage ChaosRain [#1415] has cast Eternal Winter on the evil RPG mage ~±‚±~ [#139]. ChaosRain\'s XP level is 14 and ~±‚±~\'s XP level is 13. ChaosRain\'s SL is 350 and ~±‚±~\'s SL is 300. Then: Main colour mana needed = 2 x 1.1 x (350/300) x (13/14) x 25,000 = 2.38333 x 25000 = 59,584. So ~±‚±~ can put 59584 in the box next to the word \'Wild\' and dispell the EW.
Please note that I write that this is the mana needed, when using your main colour. If for instance destroyer doesn\'t have 115500 Red (=Wild=Mountain) mana, he can use other mana too, but at an extra price. Using mana from one colour away (Swamp or Green in this case) will cost 1.1x as much (so 115500x1.1 = 127050), for the other mana colours (Blue and White) he will need 1.25x as much (115500x1.25 = 144375).
You can use a combination of different mana pools when dispelling I tend to use the highest modifier 1.25 when working out the cost.

