I built something like that, it's fun now that ladder isn't 30% C'Thun Warrior. As for your question, it depends on a lot. First of all, you need to consider what you'd like to do with your mana the next turn. If you have something like slam or bash that you may want to combine with an axe hit if you opponent plays a minion with more than 3 health (Totem Golem, Flamewaker, Tomb Pillager, innervate Druid of the Claw) then equipping first is correct. If you'd like to shield block next turn for cycle or drop acolyte, again equipping first is better. It also depends on the class you're against and whether you're on the coin or not. Basically, the less aggressive you expect the match-up to be, the more you should lean toward hero powering. That being said, those match-ups are few and far between, so you should default to equipping. The cases against equipping are random ooze from Renolock and deception (make the opponent play a naked acolyte of pain or injured blademaster), but the value of deception diminishes greatly against solid opponents who watch your mulligan. Also don't hitch T2, i.e. think about when you'd prefer to hero power than equip during your T1 and then T2 insta-hero power if the conditions are met.