Precons with Regal Sliver

Regal Sliver

Creature — Sliver

Sliver creatures you control have "When this creature enters, Slivers you control get +1/+1 until end of turn if you're the monarch. Otherwise, you become the monarch."

3/3

"It is possible that some queens are not born queens, but evolve into that form over time." —Rukarumel, field notes