Strifecro just did 45 damage on turn 9 as Grim Patron Warrior... he had an empty board and just a Death's Bite (with 1 durability remaining) to start the turn.
He had reduced the cost of a bunch of stuff with Emporer (for 1 turn). Then he did the following:
Warsong Commander (2 mana)
Dread Corsair (0 mana due to Death's Bite being equipped)
Dread Corsair (0 mana due to Death's Bite being equipped)
Frothing Berserker (2 mana)
Frothing Berserker (2 mana)
Acolyte of Pain (2 mana)
Attacked with Death's Bite, proccing the whirlwind effect, buffing his Berserkers to 10 attack each; his opponent had two minions on the board, one dying after the Death's Bite procced. This also damaged his Acolyte, which drew into a Whirlwind.
Whirlwind (1 mana) which buffed his Frothings up to 18 attack or something like that.
And just like that, GG.