Quote Originally Posted by ShneekeyTheLost View Post
We're talking Implosion vs Blasphemy, then follow up with something else that leaves no trace. It's burning several spell slots for a guaranteed kill vs burning one higher level spell slot for a risky kill that leaves your enemy able to immediately respond.
Redcloak doesn't know Durkon's level, but he can assume a fairly high level cleric.
So assuming level 15 (or even purchased access to an 8th level spell) that gives Durkon access to Greater Spell Immunity with Blasphemy being specified before a meeting with a high level evil cleric a fair precaution - Implosion bypasses that, Redcloak would know this.