Mournwhelk

hits creature — 2,298 cards in the game can cause this (Mournwhelk is one).

1. Jalira, Master Polymorphist — Jalira, Master Polymorphist can put Mournwhelk onto the battlefield from your library
2. Kethek, Crucible Goliath — Kethek, Crucible Goliath can put Mournwhelk onto the battlefield from your library
3. Polymorph — Polymorph can put Mournwhelk onto the battlefield from your library
4. Birthing Ritual — Birthing Ritual can put Mournwhelk onto the battlefield from your library
5. Industrial Advancement — Industrial Advancement can put Mournwhelk onto the battlefield from your library
6. Killer Instinct — Killer Instinct can put Mournwhelk onto the battlefield from your library
7. Arthur, Marigold Knight — Arthur, Marigold Knight can put Mournwhelk onto the battlefield from your library
8. Proteus Staff — Proteus Staff can put Mournwhelk onto the battlefield from your library
9. Synthetic Destiny — Synthetic Destiny can put Mournwhelk onto the battlefield from your library
10. Divergent Transformations — Divergent Transformations can put Mournwhelk onto the battlefield from your library

8 other cards care about it too. These are the ones with the most connections.

an Elemental creature in a graveyard — 88 cards in the game can cause this (Mournwhelk is one).

1. Thunderkin Awakener — When Mournwhelk is in the graveyard, Thunderkin Awakener can bring it back

a nontoken Elemental is sacrificed — 90 cards in the game can cause this (Mournwhelk is one).

1. Ashling, the Limitless — When you sacrifice Mournwhelk, Ashling, the Limitless makes a token

an Elemental in a graveyard — 90 cards in the game can cause this (Mournwhelk is one).

When Mournwhelk is in the graveyard:

1. Sunflare Shaman — gets bigger
2. Horde of Notions — can bring it back

an Elemental is put into a graveyard from the battlefield — 93 cards in the game can cause this (Mournwhelk is one).

When Mournwhelk is put into a graveyard from the battlefield:

1. Omnath, Locus of Rage — deals 3 damage
2. Titania, Nature's Force — mills a card

an Elemental enters the battlefield — 754 cards in the game can cause this (Mournwhelk is one).

When Mournwhelk enters:

1. Champion of the Path — deals its power damage
2. Risen Reef — puts a land onto the battlefield

a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Mournwhelk is one).

When you sacrifice Mournwhelk:

1. Fumulus, the Infestation — makes a token
2. Bag of Devouring — exiles it

a creature is sacrificed — 1,741 cards in the game can cause this (Mournwhelk is one).

When you sacrifice Mournwhelk:

1. Ziatora, the Incinerator — deals that creature's power damage
2. Dina, Essence Brewer — draws you 1 card
3. Fleshtaker — gains you 1 life
4. Body Dropper — puts a +1/+1 counter on itself
5. Smothering Abomination — draws you 1 card
6. Kels, Fight Fixer — draws you 1 card
7. Caesar, Legion's Emperor — triggers
8. Grist, the Hunger Tide — kills a creature or planeswalker an opponent controls
9. Cabal Therapist — triggers
10. Rakdos, the Muscle — exiles a card from an opponent's library

19 other cards care about it too. These are the ones with the most connections.

a card is discarded — 2,042 cards in the game can cause this (Mournwhelk is one).

When Mournwhelk makes a player discard a card:

1. Ivora, Insatiable Heir — puts a +1/+1 counter on itself
2. Cool but Rude — deals 2 damage
3. Containment Construct — brings a card back
4. Moonstone, Harsh Mistress — brings a card back
5. Sangromancer — gains you 3 life
6. Lo and Li, Royal Advisors — puts a counter on an Advisor
7. Nath of the Gilt-Leaf — makes a token
8. Inti, Seneschal of the Sun — exiles a card from your library
9. Pitchstone Wall — sacrifices itself
10. Currency Converter — exiles it

52 other cards care about it too. These are the ones with the most connections.

a creature in a graveyard — 2,769 cards in the game can cause this (Mournwhelk is one).

1. Chainer, Dementia Master — When Mournwhelk is in the graveyard, Chainer, Dementia Master can bring it back
2. Havengul Lich — When Mournwhelk is in the graveyard, Havengul Lich can bring it back
3. Liliana the Repentant — When Mournwhelk is in the graveyard, Liliana the Repentant can bring it back
4. Paleoloth — When Mournwhelk is in the graveyard, Paleoloth can bring it back
5. Chainer, Nightmare Adept — When Mournwhelk is in the graveyard, Chainer, Nightmare Adept can bring it back
6. Banon, the Returners' Leader — When Mournwhelk is in the graveyard, Banon, the Returners' Leader can bring it back
7. Surgical Suite // Hospital Room — Mournwhelk puts cards into the graveyard that Surgical Suite // Hospital Room can bring back
8. Sword of Light and Shadow — When Mournwhelk is in the graveyard, Sword of Light and Shadow can bring it back
9. Necromantic Thirst — When Mournwhelk is in the graveyard, Necromantic Thirst can bring it back
10. Krile Baldesion — When Mournwhelk is in the graveyard, Krile Baldesion can bring it back

799 other cards care about it too. These are the ones with the most connections.

a nontoken creature dies — 2,769 cards in the game can cause this (Mournwhelk is one).

When Mournwhelk dies:

1. Zahur, Glory's Past — makes a token
2. Liesa, Forgotten Archangel — brings a card back
3. Avacyn, Angel of Horror — brings a card back
4. Yedora, Grave Gardener — brings a card back
5. Nim Deathmantle — brings a card back
6. Valkyrie's Call — brings a card back
7. Decaying Soil — brings a card back
8. High-Society Hunter — draws you 1 card

62 other cards care about it too. These are the ones with the most connections.

anything attacks — 17,934 cards in the game can cause this (Mournwhelk is one).

1. Shaun, Father of Synths — When Mournwhelk attacks, Shaun, Father of Synths makes a token

149 other cards care about it too. These are the ones with the most connections.

a creature attacks — 17,934 cards in the game can cause this (Mournwhelk is one).

1. Chorale of the Void — When Mournwhelk attacks, Chorale of the Void brings a card back

223 other cards care about it too. These are the ones with the most connections.