Nightmare Sower

an Assassin deals combat damage — 212 cards in the game can cause this (Nightmare Sower is one).

When Nightmare Sower deals combat damage:

1. Layla Hassan — brings a card back
2. Ezio, Blade of Vengeance — draws you 1 card
3. Etrata, Deadly Fugitive — triggers
4. Jacob Frye — exiles a card from your graveyard

an Assassin attacks — 212 cards in the game can cause this (Nightmare Sower is one).

When Nightmare Sower attacks:

1. The Revelations of Ezio — puts a counter on a permanent
2. Origin of the Hidden Ones — makes a token

a Faerie deals combat damage — 217 cards in the game can cause this (Nightmare Sower is one).

When Nightmare Sower deals combat damage:

1. Nettling Nuisance — makes a token
2. Faerie Bladecrafter — puts a +1/+1 counter on itself
3. Alela, Cunning Conqueror — triggers

a Faerie attacks — 217 cards in the game can cause this (Nightmare Sower is one).

1. Talion's Messenger — When Nightmare Sower attacks, Talion's Messenger draws you 1 card

a Faerie creature is cast — 217 cards in the game can cause this (Nightmare Sower is one).

1. Archmage of Echoes — When Nightmare Sower is cast, Archmage of Echoes copies a spell

an Assassin creature it grants types to — 219 cards in the game can cause this.

1. Reaper's Scythe — Reaper's Scythe gives Nightmare Sower an extra creature type

218 other cards cause it too. These are the ones with the most connections.

a Faerie enters the battlefield — 237 cards in the game can cause this (Nightmare Sower is one).

1. Obyra, Dreaming Duelist — When Nightmare Sower enters, Obyra, Dreaming Duelist makes each opponent lose 1 life

1 other card cares about it too. These are the ones with the most connections.

life is gained — 2,076 cards in the game can cause this (Nightmare Sower is one).

When Nightmare Sower gains life:

1. Dina, Soul Steeper — makes each opponent lose 1 life
2. Marina Vendrell's Grimoire — draws you that many cards
3. South Wind Avatar — makes each opponent lose 1 life
4. Rodolf Duskbringer — grants indestructible
5. Fiendish Panda — puts a +1/+1 counter on itself
6. Veinwitch Coven — brings a card back
7. Cleric Class — puts a counter on a creature
8. Lich's Mastery — draws you that many cards
9. Wall of Limbs — puts a +1/+1 counter on itself
10. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers

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

a creature gets a counter — 2,691 cards in the game can cause this (Nightmare Sower is one).

When a creature gets a counter thanks to Nightmare Sower:

1. Hollowmurk Siege — draws you 1 card
2. Wickersmith's Tools — puts a charge counter on itself
3. Hapatra, Vizier of Poisons — makes a token
4. Flourishing Defenses — makes a token
5. Nest of Scarabs — makes that many tokens
6. Obelisk Spider — makes each opponent lose 1 life
7. Auntie Ool, Cursewretch — draws you 1 card
8. Generous Patron — draws you 1 card
9. Danny Pink — draws you 1 card
10. Bold Plagiarist — puts counters on a permanent

34 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 (Nightmare Sower is one).

1. All Will Be One — When a creature gets a counter thanks to Nightmare Sower, All Will Be One deals that much damage

8 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 (Nightmare Sower is one).

When Nightmare Sower attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Grim Javelineer — gives +1/+0
4. Invisible Woman — triggers
5. Caesar, Legion's Emperor — sacrifices a creature
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Banon, the Returners' Leader — draws and discards
10. Toph, Earthbending Master — puts a counter on a permanent

118 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 (Nightmare Sower is one).

When Nightmare Sower attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Saw — sacrifices a creature

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

a creature blocks — 17,934 cards in the game can cause this (Nightmare Sower is one).

1. Tide of War — When Nightmare Sower blocks, Tide of War sacrifices a creature

27 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 (Nightmare Sower is one).

When Nightmare Sower enters:

1. Scurry Oak — puts a counter on itself
2. Fathom Mage — puts a counter on itself
3. Lonis, Genetics Expert — puts a counter on itself
4. Slash, Reptile Rampager — deals 2 damage
5. Ray Fillet, Wave Warrior — puts a counter on itself
6. The Neutrinos — gets +1/+0
7. Wingnut, Bat on the Belfry — grants flying, haste and menace
8. Aetherstorm Roc — puts a counter on a permanent you control
9. Raphael, Most Attitude — exiles a card from your library

301 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 (Nightmare Sower is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Nightmare Sower enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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