Celtic Heroes

There should be a fire lure on any 6* boss. If not, you're making the 500-1500 heat dmg on every melee class negligible. In addition, fire is much better dps to begin with so there should be more fire mages than ice in every top clan. So fire dmg is better than an equivalent amount of cold dmg

On that I agree, but what friddo said is :

most mobs in tower have less fire resist not to mention all of rogues and rangers armour dps is heat, a fire lure compounds much more than ice

And I wanna know how he decided that most mobs in tower have less fire resist.

We have fire lure on almost every fight (unless no fire mage is on, what can I do ), but generally we have fire ice and assassins on every fight, with the addition of magic crush and soldiers sometimes (Im not sure whats Nar's lvl on these lures tho).
Personally, almost all my dmg is heat except my void spear which is magic dmg spear.

i didnt 'decide' it, people have done tests on it on my world and others, they were even posted to the forums, non lured dmg types in tower effectiveness are Poison>heat>cold>magic

I doubt its anymore than fluctuation, nor I have seen such tests. I can tell u tomorrow I tested and magic is least resisted.
When Zyz tested the difference was so little it was a lot more reasonable it has been fluctuation, I doubt OTM would make ice more resisted considering their quality is being high dmg mages, also in many places ice mages get kill, and whoever looks at the dmg done by mages on mobs and bosses, u will see around the same ratio missing from max dmg (if firebolt hits like 2k less than max, ice is around 4k? Due having around the double dmg, so the percentege resisted is expressed in more dmg, but its much less than 4k, I often see 10k+ hits).
Again, I doubt its that resisted, what else I highly doubt magic comes last, with a druid whom I lvl with hitting often over 4k lightening strikes out of less than 5k without any lure, which really surprised me.

Just depends on the type of mob. I use both fire skills and ice shards and I can sometimes see what my skills are hitting as long as there aren't too many other mages present. On mobs like 195 6*, firebolt will hit max dmg while iceshards struggles to get above 1/3. On the other hand, the opposite is true for 205. This also correlates to elemental dmg items. On some bosses bloodthorn is the best. On some bladeleaf is best. On others frostroot is best. There is no setup that is the best for all bosses, but all three of these sets are good enough for all bosses in general that it isn't necessary to get all three sets to maximize dps

I doubt its anymore than fluctuation, nor I have seen such tests. I can tell u tomorrow I tested and magic is least resisted.
When Zyz tested the difference was so little it was a lot more reasonable it has been fluctuation, I doubt OTM would make ice more resisted considering their quality is being high dmg mages, also in many places ice mages get kill, and whoever looks at the dmg done by mages on mobs and bosses, u will see around the same ratio missing from max dmg (if firebolt hits like 2k less than max, ice is around 4k? Due having around the double dmg, so the percentege resisted is expressed in more dmg, but its much less than 4k, I often see 10k+ hits).
Again, I doubt its that resisted, what else I highly doubt magic comes last, with a druid whom I lvl with hitting often over 4k lightening strikes out of less than 5k without any lure, which really surprised me.

This update lowered magic resists of mobs they announced somewhere, reason why druids hit more now. It could be fluctuations, we did like 50 autos or so per and posted results somewhere in forums(Me and Inaliel). Have a go n check using 100+ autos if you wanna have a better picture. All things aside, it really comes down to types mobs btw. Unlured poison is better than unlured fire/ice in tower. But who kills bosses without lures so it's bound to be fire n cold better than poison.

To the OP I think the 200 heat damage ammy is a good ammy for pure bossing

^Yes, BOTH fire and cold are better, perhaps each one weaker against different mobs, but I highly doubt one is 'better'.