Ambush

[magnet]

DM, you're supposing here that on every char, Resist Power is 33%, and that Resist KD is 50% (or the opposite), which is simply false .

The chances of resist depend. So Ambush may have 80% of chance to succeed on a player (e.g a low level mage) and only 30% on another (a knight with Protector on).

But you're right though that you can't suppose it will work before casting it. Just pray. Or choose wisely.

Just so you know, as I said, it has nothing to do with Ambush itself. It is the same for all KD spells: Feint, Trip, Will Domain, etc. And it's about the same with Stun (but there are fewer anti-stun buffs).