Save your spells for when there’s a chance to use them effectively, or just win the game. Focus on playing the unimportant pieces (fake the arcanyst build) early game to build your board and give your opponent something to worry about. Replace anything you won’t need soon.

Possible to switch out illusionists for Sarlac for survivability, since dispel is the only thing that kills it, but the deck already runs a lot of legendaries and illusionist does the trick ok. You can upgrade illusionists to Sarlac as you get more if you want. But it also might be worth keeping the illusionists in for the Owlbeast synergy, it just depends on how you’re able to keep your illusionists alive and what your preference is.