Dragon loot and realm imbalance

[save_the_trees]

With the current spells, fire damage occurs far more often than ice or lightning. Especially ice can be only seen within arcana strike and winter stroke (The warlock ice dmg spells just suck, nobody uses them anyway ... ). But let me list all the rather often used spells containing fire dmg: Meteor, arcane missile, blaze, fireball, magma blast, ignus scorch, arcana strike. Apart from that, the ignean axe does quite some fire dmg (a common way to counter steel skin for non blunt barbs ... :/ ) but there isn't an alsirian or syrtian axe with ice/lightning dmg. Lightning dmg at least still occurs a bit more frequently than ice but still a lot less often than fire. The Alasthor/Aysor - "resist cold" is just worse than the corresponding bonus in the other realms.
Therefore I think that all boss monster drops with some kind of elemental dmg resistance should resist all 3 kind instead of only one realm specific kind.