Wall of Vipers

a Wall creature in a graveyard — 11 cards in the game can cause this (Wall of Vipers is one).

1. Glyph of Reincarnation — When Wall of Vipers is in the graveyard, Glyph of Reincarnation can bring it back

a Snake deals combat damage — 226 cards in the game can cause this (Wall of Vipers is one).

1. Seshiro the Anointed — When Wall of Vipers deals combat damage, Seshiro the Anointed draws you 1 card

a nontoken Snake enters the battlefield — 227 cards in the game can cause this (Wall of Vipers is one).

1. Sosuke's Summons — When Wall of Vipers enters, Sosuke's Summons returns itself from the graveyard

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

When Wall of Vipers is in the graveyard:

1. Chainer, Dementia Master — can bring it back
2. Havengul Lich — can bring it back
3. Liliana the Repentant — can bring it back
4. Paleoloth — can bring it back
5. Chainer, Nightmare Adept — can bring it back
6. Banon, the Returners' Leader — can bring it back
7. Surgical Suite // Hospital Room — can bring it back
8. Sword of Light and Shadow — can bring it back
9. Necromantic Thirst — can bring it back
10. 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 (Wall of Vipers is one).

When Wall of Vipers dies:

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

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

a creature dies — 2,830 cards in the game can cause this (Wall of Vipers is one).

When Wall of Vipers dies:

1. Pious Evangel // Wayward Disciple — makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — gains you 1 life
3. Elas il-Kor, Sadistic Pilgrim — makes each opponent lose 1 life
4. Shriveling Rot — makes a player lose life equal to its toughness
5. Meathook Massacre II — brings a card back
6. Ashnod's Intervention — brings a card back
7. Missy — brings a card back
8. Malakir Rebirth // Malakir Mire — brings a card back
9. Saffi Eriksdotter — sacrifices itself
10. Angelic Renewal — sacrifices itself

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

a creature leaves the battlefield — 4,238 cards in the game can cause this (Wall of Vipers is one).

1. Ninja Teen — When Wall of Vipers leaves the battlefield, Ninja Teen makes each opponent lose 1 life

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

a card in a graveyard — 7,589 cards in the game can cause this (Wall of Vipers is one).

1. Havi, the All-Father — Wall of Vipers fills your graveyard toward the 4 or more cards Havi, the All-Father needs
2. Repentant Vampire — Wall of Vipers fills your graveyard toward the 7 or more cards Repentant Vampire needs
3. Treacherous Vampire — Wall of Vipers fills your graveyard toward the 7 or more cards Treacherous Vampire needs
4. Athreos, Shroud-Veiled — When Wall of Vipers is in the graveyard, Athreos, Shroud-Veiled can bring it back

440 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 (Wall of Vipers is one).

When Wall of Vipers attacks:

1. Shaun, Father of Synths — makes a token
2. Grim Javelineer — gives +1/+0
3. Clavileño, First of the Blessed — turns something into a creature

146 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 (Wall of Vipers is one).

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

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

a creature is cast — 18,010 cards in the game can cause this (Wall of Vipers is one).

1. Quirion Beastcaller — When Wall of Vipers is cast, Quirion Beastcaller puts a +1/+1 counter on itself

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

a creature enters the battlefield — 19,800 cards in the game can cause this (Wall of Vipers is one).

When Wall of Vipers enters:

1. Boss's Chauffeur — puts a +1/+1 counter on itself
2. Dinosaur Egg — puts a counter on itself

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