JORAX2,066,534 Locked 24 Jun 2013
The Angry Mob encounter is found in Single Player --> Campaign. It will be the third encounter you face when starting out (in the Innistrad plane if you moved past this already and are looking for a quick achievement). Once you start this encounter simply do nothing while the mob gets built up and eventually kills you. You do not have to get this the first time you play the encounter, so there is no way to miss out on this as you can come back to it later.