Rapid Decay

an instant is discarded — 100 cards in the game can cause this (Rapid Decay is one).

When Rapid Decay makes a player discard a card:

1. Bone Miser — draws you 1 card
2. Oskar, Rubbish Reclaimer — brings a card back
3. Conspiracy Theorist — brings a card back
4. Veronica, Dissident Scribe — makes a token
5. Green Goblin, Nemesis — puts a counter on a Goblin
6. Surly Badgersaur — deals damage

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

a card is discarded — 2,042 cards in the game can cause this (Rapid Decay is one).

When Rapid Decay makes a player discard a card:

1. Ivora, Insatiable Heir — puts a +1/+1 counter on itself
2. Cool but Rude — deals 2 damage
3. Containment Construct — brings a card back
4. Moonstone, Harsh Mistress — brings a card back
5. Lazotep Chancellor — puts 2 counters on a Zombie or Army
6. Magmakin Artillerist — deals that much damage
7. Inti, Seneschal of the Sun — exiles a card from your library
8. Pitchstone Wall — sacrifices itself
9. Currency Converter — exiles it
10. Hostile Investigator — triggers

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

anything is exiled — 2,497 cards in the game can cause this (Rapid Decay is one).

1. The War Doctor — When a permanent is exiled thanks to Rapid Decay, The War Doctor puts a time counter on itself

a card is drawn — 3,815 cards in the game can cause this (Rapid Decay is one).

When Rapid Decay makes a player draw a card:

1. Temmet, Naktamun's Will — gives +1/+1
2. Niv-Mizzet, Parun — deals 1 damage
3. Aether Syphon — mills a card
4. The Locust God — makes a token
5. Starving Revenant — makes each opponent lose 1 life
6. Diviner's Wand — gets +1/+1
7. Ominous Seas — puts a foreshadow counter on itself
8. Dream Trawler — gets +1/+0
9. Iron Man, Armored Avenger — puts a counter on a creature
10. The Astonishing Ant-Man — puts a +1/+1 counter on itself

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

an instant is cast — 3,931 cards in the game can cause this (Rapid Decay is one).

When Rapid Decay is cast:

1. Lunar Mystic — draws you 1 card
2. Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time — grants rebound
3. Repeated Reverberation — copies an ability
4. Riku of Two Reflections — copies a spell
5. Sword of Wealth and Power — copies a spell
6. Lilah, Undefeated Slickshot — gets +1/+1
7. Gale, Waterdeep Prodigy — brings a card back
8. Harness the Storm — brings a card back
9. In the Eye of Chaos — counters a spell
10. Niblis of Frost — taps a creature an opponent controls

427 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 (Rapid Decay is one).

1. Transplant Theorist — When Rapid Decay is in the graveyard, Transplant Theorist can bring it back
2. Heart-Shaped Herb — When Rapid Decay is in the graveyard, Heart-Shaped Herb can bring it back
3. Wayward Angel — Rapid Decay fills your graveyard toward the 7 or more cards Wayward Angel needs
4. Victimize — When Rapid Decay is in the graveyard, Victimize can bring it back
5. Bound // Determined — When Rapid Decay is in the graveyard, Bound // Determined can bring it back
6. Enlightened Confidant — When Rapid Decay is in the graveyard, Enlightened Confidant can bring it back
7. Tergrid, God of Fright // Tergrid's Lantern — When Rapid Decay is in the graveyard, Tergrid, God of Fright // Tergrid's Lantern can bring it back
8. Aerith, Last Ancient — When Rapid Decay is in the graveyard, Aerith, Last Ancient can bring it back
9. Sivriss, Nightmare Speaker — When Rapid Decay is in the graveyard, Sivriss, Nightmare Speaker can bring it back
10. Emet-Selch, Unsundered // Hades, Sorcerer of Eld — When Rapid Decay is in the graveyard, Emet-Selch, Unsundered // Hades, Sorcerer of Eld can bring it back

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

anything goes to a graveyard — 7,589 cards in the game can cause this (Rapid Decay is one).

When Rapid Decay hits the graveyard:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Planar Void — hits a graveyard
3. Measure of Wickedness — gives an opponent control of itself
4. Energy Field — sacrifices itself

7 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 (Rapid Decay is one).

When Rapid Decay 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. Umara Mystic — gets +2/+0
7. Master of Winds — triggers

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