At the 2nd boss in Tombs.
Ran him down halfway into Phase 2 to around 165 or so HP from 300, when he dropped a big C’Thun.
I had Evasion up, and lasted another turn.
After the encounter the 2nd boss is at 285 health.
I didn’t have bulwark. Just evasion up. My last turn on the board I had just 1-2 murlocs. The last shot to me was the end of turn random attack.