Capapult - Wait wut?
Adrenaline - Seriously?
Thought about it some more, and it's actually doubled up, so Adrenaline will say high attack creatures gain less attacks and Catapult will say smaller creatures inflict less damage, and both will essentially do the same thing.
Personally feel the combo with oty is stupid OP, true it would eventually eat itself to a point it probably couldn't grow, but on a new Oty it means you're allowed to instakill a large number of creatures.
hence the duration, sure you could probably use it, get one oty to grow, and then not play any more, so you have one bit oty but thats little better than heavy armor and only leaves you with one vulnerable card. you need either a constant stream of Inversions or a constant stream of Oty which is a hard enough combo that the result isn't OP.