Mournwhelk 
Creature — Elemental
When this creature enters, target player discards two cards.
Evoke 
(You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL