Call a Surprise Witness

a creature leaves a graveyard — 1,302 cards in the game can cause this (Call a Surprise Witness is one).

When a creature leaves a graveyard thanks to Call a Surprise Witness:

1. Grim Reaper's Scythe — makes a token
2. Syr Konrad, the Grim — deals 1 damage
3. Cyan, Vengeful Samurai — puts a +1/+1 counter on itself
4. Along the Crooked Way — puts a counter on a Goblin or Army
5. Skeleton Crew — makes a token
6. Desecrated Tomb — makes a token
7. Chalk Outline — makes a token
8. Insidious Roots — makes a token
9. Undead Hand Ninja — makes each opponent lose 1 life
10. Rot Farm Mortipede — gets +1/+0

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

anything leaves a graveyard — 2,503 cards in the game can cause this (Call a Surprise Witness is one).

When a creature leaves a graveyard thanks to Call a Surprise Witness:

1. Blastoneuron — makes each opponent lose 1 life
2. Defiled Crypt // Cadaver Lab — makes a token
3. Teval, the Balanced Scale — makes a token
4. Hologram Stalker — makes a token
5. Tormod, the Desecrator — makes a token
6. Quintorius, Field Historian — makes a token
7. Garrison Excavator — makes a token
8. Amzu, Swarm's Hunger — makes a token
9. Kirol, History Buff // Pack a Punch — becomes prepared
10. Teval's Judgment — triggers

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

a sorcery is cast — 3,720 cards in the game can cause this (Call a Surprise Witness is one).

When Call a Surprise Witness is cast:

1. Spellweaver Volute — copies a spell
2. Lilah, Undefeated Slickshot — gets +1/+1
3. Niblis of Frost — gets +1/+1
4. Primeval Bounty — puts 3 counters on a creature
5. Tetsuko Umezawa, Pursuer — gets +1/+1
6. Thor, God of Thunder — deals that spell's mana value damage
7. Krile Baldesion — brings a card back
8. Summon: Good King Mog XII — makes a token
9. Kykar, Wind's Fury — makes a token
10. Blood Funnel — sacrifices a creature

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

anything gets a counter — 4,415 cards in the game can cause this (Call a Surprise Witness is one).

1. All Will Be One — When a permanent gets a counter thanks to Call a Surprise Witness, All Will Be One deals that much damage

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

a nontoken creature enters the battlefield — 18,448 cards in the game can cause this (Call a Surprise Witness is one).

When a creature enters thanks to Call a Surprise Witness:

1. Riku of Two Reflections — makes a token
2. Samwise Gamgee — makes a token
3. Dual Nature — makes a token
4. Chainer, Nightmare Adept — grants haste
5. Preston, the Vanisher — makes a token
6. Angelic Sell-Sword — makes a token
7. Arni, Humble Scribe — untaps itself
8. Saradoc, Master of Buckland — makes a token
9. Lonis, Cryptozoologist — triggers
10. Radiant Solar — triggers

23 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 (Call a Surprise Witness is one).

1. Lunarch Veteran // Luminous Phantom — When a creature enters thanks to Call a Surprise Witness, Lunarch Veteran // Luminous Phantom gains you 1 life
2. Pious Evangel // Wayward Disciple — When a creature enters thanks to Call a Surprise Witness, Pious Evangel // Wayward Disciple gains you 1 life
3. Daxos, Blessed by the Sun — When a creature enters thanks to Call a Surprise Witness, Daxos, Blessed by the Sun gains you 1 life
4. Elas il-Kor, Sadistic Pilgrim — When a creature enters thanks to Call a Surprise Witness, Elas il-Kor, Sadistic Pilgrim gains you 1 life
5. Glaring Fleshraker — When a creature enters thanks to Call a Surprise Witness, Glaring Fleshraker deals 1 damage
6. Blasting Station — When a creature enters thanks to Call a Surprise Witness, Blasting Station untaps itself
7. Deluge Virtuoso — When Deluge Virtuoso enters thanks to Call a Surprise Witness, it taps a creature an opponent controls
8. Mogg Bombers — When a creature enters thanks to Call a Surprise Witness, Mogg Bombers sacrifices itself
9. Flame-Kin War Scout — When a creature enters thanks to Call a Surprise Witness, Flame-Kin War Scout sacrifices itself
10. Monkey Cage — When a creature enters thanks to Call a Surprise Witness, Monkey Cage sacrifices itself

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

anything enters the battlefield — 26,499 cards in the game can cause this (Call a Surprise Witness is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a creature enters thanks to Call a Surprise Witness, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
2. Sokka, Bold Boomeranger — When Sokka, Bold Boomeranger enters thanks to Call a Surprise Witness, it draws and discards
3. Sanar, Unfinished Genius // Wild Idea — When Sanar, Unfinished Genius // Wild Idea enters thanks to Call a Surprise Witness, it becomes prepared

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

anything is cast — 31,128 cards in the game can cause this (Call a Surprise Witness is one).

When Call a Surprise Witness is cast:

1. Windrider Wizard — draws you 1 card
2. Relic Amulet — puts a charge counter on itself
3. Rockslide Sorcerer — deals 1 damage
4. Umara Wizard // Umara Skyfalls — grants flying
5. Alania, Divergent Storm — makes an opponent draw 1 card
6. Master of Winds — triggers

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