[Snake]

Can this either cost 1M to use, or grant a 3 round immunity to those debuffs it cleanses? The design of this is pretty odd without an immunity attached to it.

Because let's say, a Kensei who's slower than the Void Assassin will just re-apply Absolute Death and will still have 4M to act freely. Or worse, Staff of Eyes will just re-apply an Analyze Weakness for just hitting the Void Assassin, so cleansing it beforehand would be pointless and a waste of Momentum.