Devil's Wheel has a nice ability. It makes me realize I don't know exactly how timing works in the game. Can you only activate abilities of relics and angels/demons on your turn?
The idea right now is that you can use one relic once per turn.
So as you collect relics you put them face up in front of you. This becomes a pool which you can draw from if you choose each turn. But you can only use one relic per turn. The more relics you have the more likely you will be able to use one on your turn. And of course, you are gaining victory points as well.