Metamorphic Wurm

Creature — Elephant Wurm

Produces: nothing.

Cares about: a card in a graveyard.

Partners

92 cards can cause a Wurm it boosts.

1. Baru, Wurmspeaker — Baru, Wurmspeaker gives Metamorphic Wurm bigger stats

6,862 cards can cause a card in a graveyard.

1. Heart-Shaped Herb — Heart-Shaped Herb fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
2. Victimize — Victimize fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
3. Come Back Wrong — Come Back Wrong fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
4. Bound // Determined — Bound // Determined fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
5. Boneshard Slasher — Boneshard Slasher fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
6. Wayward Angel — Wayward Angel fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
7. Shattergang Brothers — Shattergang Brothers fills your graveyard toward the 7 or more cards Metamorphic Wurm needs
8. Ruthless Technomancer — Ruthless Technomancer fills your graveyard toward the 7 or more cards Metamorphic Wurm needs

6,854 other cards ask for it too, equally specific. The ones shown are the best connected.