The Necrobloom (R 194 MH3)

Landfall — Whenever a land you control enters, create a 0/1 green Plant creature token. If you control seven or more lands with different names, create a 2/2 black Zombie creature token instead.
Land cards in your graveyard have dredge 2. (You may return a land card from your graveyard to your hand and mill two cards instead of drawing a card.)

rare
Legendary Creature — Plant
From the Magic: The Gathering set Modern Horizons 3.