Lonesome Unicorn // Rider in Need

an Adventure sorcery is cast — 77 cards in the game can cause this (Lonesome Unicorn is one).

1. Lucky Clover — When Lonesome Unicorn // Rider in Need is cast, Lucky Clover copies a spell

a Knight enters the battlefield — 592 cards in the game can cause this (Lonesome Unicorn is one).

When a Knight enters thanks to Lonesome Unicorn // Rider in Need:

1. Brimstone Trebuchet — untaps itself
2. Zhalfirin Lancer — gets +1/+1

a creature token enters the battlefield — 2,799 cards in the game can cause this (Lonesome Unicorn is one).

When a Knight enters thanks to Lonesome Unicorn // Rider in Need:

1. Securitron Squadron — puts a counter on a permanent
2. Anointer Priest — gains you 1 life
3. Nesting Dovehawk — puts a +1/+1 counter on itself

a creature token is created — 2,799 cards in the game can cause this (Lonesome Unicorn is one).

1. Staff of the Storyteller — When Lonesome Unicorn // Rider in Need makes a Knight token, Staff of the Storyteller puts a story counter on itself

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

a token enters the battlefield — 3,710 cards in the game can cause this (Lonesome Unicorn is one).

When a Knight enters thanks to Lonesome Unicorn // Rider in Need:

1. Baron Bertram Graywater — makes a token
2. Marneus Calgar — draws you 1 card
3. Belladonna Took — gains you 1 life
4. Kambal, Profiteering Mayor — makes each opponent lose 1 life
5. Lucy MacLean, Positively Armed — makes a token
6. Mister Fantastic, Reed Richards — draws you 1 card
7. Cloakwood Swarmkeeper — puts a +1/+1 counter on itself
8. Woodland Champion — puts that many +1/+1 counters on itself
9. Leonardo, the Balance — puts a counter on a creature
10. Spiritcall Enthusiast // Scrollboost — becomes prepared

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

a token is created — 3,711 cards in the game can cause this (Lonesome Unicorn is one).

When Lonesome Unicorn // Rider in Need makes a Knight token:

1. Akim, the Soaring Wind — makes a token
2. Idol of Oblivion — draws you 1 card
3. Rosie Cotton of South Lane — puts a counter on a permanent
4. Mirkwood Bats — makes each opponent lose 1 life

17 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 (Lonesome Unicorn is one).

When Lonesome Unicorn // Rider in Need 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 attacks — 17,934 cards in the game can cause this (Lonesome Unicorn is one).

When Lonesome Unicorn // Rider in Need 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

127 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 (Lonesome Unicorn is one).

When Lonesome Unicorn // Rider in Need 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
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls

200 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 (Lonesome Unicorn is one).

When Lonesome Unicorn // Rider in Need blocks:

1. Tide of War — sacrifices a creature
2. Dead-Iron Sledge — kills a creature

28 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 (Lonesome Unicorn is one).

1. Riku of Two Reflections — When Lonesome Unicorn // Rider in Need enters, Riku of Two Reflections makes a token

32 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 (Lonesome Unicorn is one).

1. Pollywog Prodigy — When Lonesome Unicorn // Rider in Need enters, Pollywog Prodigy puts a counter on itself
2. Slash, Reptile Rampager — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, Slash, Reptile Rampager deals 2 damage
3. Ray Fillet, Wave Warrior — When Lonesome Unicorn // Rider in Need enters, Ray Fillet, Wave Warrior puts a counter on itself
4. The Neutrinos — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, The Neutrinos gets +1/+0
5. Wingnut, Bat on the Belfry — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, Wingnut, Bat on the Belfry grants flying, haste and menace
6. Aetherstorm Roc — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, Aetherstorm Roc puts a counter on a permanent you control
7. Raphael, Most Attitude — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, Raphael, Most Attitude exiles a card from your library

348 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 (Lonesome Unicorn is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a Knight enters thanks to Lonesome Unicorn // Rider in Need, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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