Um, precogs wouldn't actually speed that combo up any . . . you'd need to draw the precog, use it, and then draw whatever other card you needed. It'd be just as fast (and more quanta efficient) to just draw the original card you needed and skip the precog.
And I really don'y think that combo would be more powerful than other combos already in the game. After all, if you need to adrenalline and momentum it then most of the time you can't quint it the same turn played, as you would need all 4 cards in your hand at the same time.
I think those same buff cards played on a deathstalker would be a more game-winning combo.
Can Essence clarify how adrenaline would effect this creature though? With venomous creatures it only goes off every other attack, so I'd suspect something similar here. If so it balances nicely, if not it's borderline OP maybe?