Delirium

a creature becomes tapped — 565 cards in the game can cause this (Delirium is one).

When a creature becomes tapped thanks to Delirium:

1. Unctus, Grand Metatect — draws you 1 card
2. Sharae of Numbing Depths — draws you 1 card
3. Rewrite History — draws you 1 card
4. Stinging Licid — deals 2 damage
5. Gideon's Avenger — puts a +1/+1 counter on itself
6. Icewrought Sentry — gets +2/+1
7. Hawkeye's Bow — deals 1 damage
8. Cryoshatter — kills a creature
9. Don't Move — kills a creature
10. Hylda of the Icy Crown — triggers

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

damage is prevented — 568 cards in the game can cause this (Delirium is one).

When a creature has damage prevented thanks to Delirium:

1. Phyrexian Vindicator — deals that much damage
2. Selfless Squire — puts that many +1/+1 counters on itself
3. New Way Forward — deals that much damage
4. Samite Ministration — gains you that much life
5. Judgment of Alexander — deals its power damage

anything becomes tapped — 699 cards in the game can cause this (Delirium is one).

1. Master Pakku — When Master Pakku becomes tapped thanks to Delirium, it mills a card

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

anything deals noncombat damage — 3,068 cards in the game can cause this (Delirium is one).

When a creature deals noncombat damage thanks to Delirium:

1. Quest for Pure Flame — puts a quest counter on itself
2. Fear of Burning Alive — deals that amount damage
3. Niv-Mizzet, Visionary — draws you that many cards
4. Chandra's Incinerator — deals that much damage
5. Chandra's Pyreling — gets +1/+0
6. Talon of Pain — puts a charge counter on itself
7. Asgardian Inspiration — returns itself from the graveyard
8. Thor, Guardian of Midgard — exiles a card from your library
9. Virtue of Courage // Embereth Blaze — exiles a card from your library

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

life is lost — 3,160 cards in the game can cause this (Delirium is one).

When a creature makes a player lose life thanks to Delirium:

1. Far Fortune, End Boss — raises your speed
2. Zahur, Glory's Past — raises your speed
3. Mendicant Core, Guidelight — raises your speed
4. Aether Syphon — raises your speed
5. Vnwxt, Verbose Host — raises your speed
6. Embalmed Ascendant — raises your speed
7. Slick Imitator — raises your speed
8. Oath of Lim-Dûl — sacrifices an enchantment
9. Marina Vendrell's Grimoire — triggers
10. Lich's Mastery — triggers

46 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 (Delirium is one).

When Delirium is cast:

1. Soul-Scar Mage — gets +1/+1
2. Tomik, Izzet Sparkmage — gets +1/+1
3. Tor Wauki the Younger — deals 2 damage
4. Lunar Mystic — draws you 1 card
5. Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time — grants rebound
6. Repeated Reverberation — copies an ability
7. Riku of Two Reflections — copies a spell
8. Sword of Wealth and Power — copies a spell
9. Artist's Talent — draws and discards
10. In the Eye of Chaos — counters a spell

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

anything is dealt damage — 19,812 cards in the game can cause this (Delirium is one).

When a player is dealt damage thanks to Delirium:

1. Massacre Girl, Most Wanted — puts a +1/+1 counter on itself
2. War Elemental — puts that many +1/+1 counters on itself
3. Darien, King of Kjeldor — makes that many tokens
4. Blood Hound — puts that many +1/+1 counters on itself
5. Chandra's Spitfire — gets +3/+0
6. Wildfire Elemental — gives +1/+0
7. Master of Barbs — gives +1/+0
8. Swarmborn Giant — sacrifices itself
9. Risona, Asari Commander — triggers
10. Azor's Elocutors — triggers

5 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 (Delirium is one).

When Delirium 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. Master of Winds — triggers

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