Veska, Mother of the Swarm

First Strike, Reach, Defender

At the beginning of your end step, you may sacrifice a land, if you do create a 0/1 green egg creature token with defender.

{3}{p/g}{p/w}: Exile Veska, Mother of the Swarm, then return it to the battlefield transformed under its owner's control, activate only as a sorcery if you control five or more creature tokens. When Veska, Mother of the Swarm is exiled this way, lands you control become 0/1 green egg creature tokens until end of turn.