Your "Cyber Angel" Ritual Monsters cannot be destroyed by battle. When you take damage by battle or an opponent's card effect: You can Tribute 1 "Cyber Angel" Ritual Monster from your hand or field; Special Summon 1 "Cyber Angel" Ritual Monster from your hand. (This is treated as a Ritual Summon.) You can only use this effect of "Incarnated Machine Angel" once per turn.
So the best scenario is to play this card turn 1, end turn, next turn get a massive hit and (hopefully) survive and then special summon a cyber angel monster. And all these assuming that you have 2 cyber angel ritual monsters of the same level and also that this card wont be destroyed.
Yeah, it can propably work on silver and bellow.