This card is a really powerful buff to death, in a way that you would probably need to build the card around to prevent. The first combo I can think of is already quite overpowered, and if Quietus stacks, insanely so.
Generate enough quantum to play a photon and aflatoxin it on your side. Play your quietus, and continue to play as many as you're allowed. Within five turns, you will be generating 46 poison damage a turn, per quietus, already an insanely powerful amount. If the effect stacked, three quietus would instantly kill a player, and five would instantly kill a false god.
Mix it with darkness and you can use cloak as a stall card which prevents both the creature and damage control necessary to stop this combo from breaking it. Three cloaks, starting at the beginning of the match, would be more than enough to ensure victory, the new overpowered poison rush to succeed sPlat. If you feel so inclined, you can even imitate it using shards of sacrifice.
So, with four cards, 9
quantum to begin the combo, and 4
quantum every three turns to keep it running, you would be able to kill any elements deck not designed around anti-poison.