Academy Ruins

an artifact leaves a graveyard — 233 cards in the game can cause this (Academy Ruins is one).

1. Imotekh the Stormlord — When an artifact leaves a graveyard thanks to Academy Ruins, Imotekh the Stormlord makes 2 tokens

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

an artifact in a graveyard — 1,226 cards in the game can cause this.

1. Invasion of New Capenna // Holy Frazzle-Cannon — Invasion of New Capenna // Holy Frazzle-Cannon puts cards into the graveyard that Academy Ruins can bring back
2. Gut, True Soul Zealot — Gut, True Soul Zealot puts cards into the graveyard that Academy Ruins can bring back
3. Mica, Reader of Ruins — Mica, Reader of Ruins puts cards into the graveyard that Academy Ruins can bring back
4. Shattergang Brothers — Shattergang Brothers puts cards into the graveyard that Academy Ruins can bring back
5. Heart-Shaped Herb — When Heart-Shaped Herb is in the graveyard, Academy Ruins can bring it back
6. Ruthless Technomancer — Ruthless Technomancer puts cards into the graveyard that Academy Ruins can bring back
7. Tergrid, God of Fright // Tergrid's Lantern — Tergrid, God of Fright // Tergrid's Lantern puts cards into the graveyard that Academy Ruins can bring back
8. Trading Post — Trading Post puts cards into the graveyard that Academy Ruins can bring back
9. Sivriss, Nightmare Speaker — Sivriss, Nightmare Speaker puts cards into the graveyard that Academy Ruins can bring back
10. Fain, the Broker — Fain, the Broker puts cards into the graveyard that Academy Ruins can bring back
11. Sandals of Abdallah — When Sandals of Abdallah is in the graveyard, Academy Ruins can bring it back
12. Voodoo Doll — When Voodoo Doll is in the graveyard, Academy Ruins can bring it back
13. Rocket Launcher — When Rocket Launcher is in the graveyard, Academy Ruins can bring it back

1,216 other cards care about it too. These are the ones with the most connections.

a land it grants abilities to — 1,237 cards in the game can cause this.

1. Mystic Skull // Mystic Monstrosity — Mystic Skull // Mystic Monstrosity gives Academy Ruins an extra ability
2. Chromatic Lantern — Chromatic Lantern gives Academy Ruins an extra ability
3. Shimmer — Shimmer gives Academy Ruins phasing
4. Petrified Hamlet — Petrified Hamlet gives Academy Ruins an extra ability

1,233 other cards cause it too. These are the ones with the most connections.

a land enters the battlefield — 1,560 cards in the game can cause this (Academy Ruins is one).

When Academy Ruins enters:

1. Primeval Bounty — gains you 3 life
2. Toph, Earthbending Master — puts a counter on a permanent
3. Dancing from Dark to Dawn — makes a token
4. Emeria Shepherd — brings a card back
5. Quest for the Necropolis — puts a quest counter on itself
6. Soul Stair Expedition — puts a quest counter on itself
7. Nissa of Shadowed Boughs — puts counters on a permanent
8. Thranduil, Sindarin Liege // Silvan Rally — makes a token
9. Silvan Reveler — returns itself from the graveyard
10. Floral Evoker — puts a +1/+1 counter on itself

199 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 (Academy Ruins is one).

When an artifact leaves a graveyard thanks to Academy Ruins:

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.