You asked if switching out moldervine cloak for warhammer is a good idea against my deck.

Now, think about it. My deck is based around removal, right? So you can make me kill something on demand with cloak- you can pick the target. If you use warhammer, you’ll be too slow. The other problem is if cloak resolves, I’m in a world of hurt. If the hammer equips, I’m more than happy to leave it alone until it becomes an issue. The toughness is what matters against a burn-based deck, and you won’t be getting any from hammer.

In general, moldervine cloak is incredible.