[Fern]

Honestly, I've always felt as if intensify cold's duration lasts too short, and people seem to cheese it by running away anyway. At least in my personal experience it has been that way.

I think the weakness could be dropped to 30% or something like that, so the duration could be bumped up to 4 rounds. But that's me. I believe this is the only way to make 4 rounds work fine, since when the ice mage actually gets to catch someone with that weakness, they dish out a hilarious amount of damage.