Surely he has 70% Evasion now, he's good.

But number-of-time Evasion is a very cool and unique feature.

It's a shame that this flavor is gone by now.

In fact, one simple buff is enough:
When the battle starts and when the caster's turn ends, successfully Evades the next attack once.

So he can be used STABLY to bait light heroes,

without getting screwed by 30% from time to time.

Or, be used against AoE openers with Snow Crystal or Guide to serve disruption purpose.

Since it's STABLE Evasion, he can be built very fast to full cycle S2 passive.