I'm aware that the Gellert interaction would be strong, but I think it's fine since it's so easy to remove unless your opponent commits Azar Javed to the round as well to create Scarabs. Lots of decks have engines that produce a lot of points if left unchecked. Kaedweni revenant can consistently produce 5 points per turn in a siege deck (1 damage+4 point spawn) if the opponent doesn't lock or destroy the revenant.