Tsi-Rucho, The Decomposer

Deathtouch, skulk
When Tsi-Rucho attacks, target a land in an opponent's graveyard and exile it. It gains land walking of that type until end of turn.
When Tsi-Rucho, The Decomposer deals
combat damage to a player, that player must discard a land or mill 3. If a land was put into
the graveyard this way, put a +1/+1 counter on this card.