Naga Lock

ETC additions (Youthful Brewmaster, Sunwell, Devourer of Souls)

Play curses when possible and use discover to get more curse effects.

School Teacher -> Dragged Below

Youthful Brewmaster on any Curse Battlecry (Cultist, Za’Qul, Darkvein) 

Best to play Darkvein after Abyssal wave for a 8 dmg board clear, try to save a mortal coil or defile to trigger darkvein’s deathrattles on your turn. 

Queen Azshara, treasure is spell copy, preferably abyssal wave. good bounce target for brewmaster or zola.

Worst matchup is big minion lifesteal (Mostly Priest colossal, Deathknight, Big undead lock). Save sylvanas to steal colossal so Priest cant make more clones with powerchord:sync. Steal drakir drathir from big undead lock.

Overall, you should be able to clear well and get to 5-6 curses.