Cloud of Darkness

put a permanent into a graveyard — 79 cards in Cloud of Darkness's colors can cause this.

1. Lich — Lich puts cards into the graveyard, and Cloud of Darkness gets bigger
2. Stitcher's Graft — Stitcher's Graft puts cards into the graveyard, and Cloud of Darkness gets bigger
3. Worldslayer — Worldslayer puts cards into the graveyard, and Cloud of Darkness gets bigger
4. Liliana, Dreadhorde General — Liliana, Dreadhorde General puts cards into the graveyard, and Cloud of Darkness gets bigger
5. Lich's Tomb — Lich's Tomb puts cards into the graveyard, and Cloud of Darkness gets bigger
6. Behemoth of Vault 0 — Behemoth of Vault 0 puts cards into the graveyard, and Cloud of Darkness gets bigger
7. Ygra, Eater of All — When Ygra, Eater of All is in the graveyard, Cloud of Darkness gets bigger
8. Mindlash Sliver — When Mindlash Sliver is in the graveyard, Cloud of Darkness gets bigger
9. Mindwhip Sliver — When Mindwhip Sliver is in the graveyard, Cloud of Darkness gets bigger
10. Witherbloom Charm — Witherbloom Charm puts cards into the graveyard, and Cloud of Darkness gets bigger

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

a creature attacks — 6,618 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness attacks:

1. Adaptive Omnitool — searches a library
2. Chorale of the Void — brings a card back
3. Staff of Titania — makes a token
4. Fractal Harness — puts counters on a permanent
5. Inquisitorial Rosette — makes a token
6. Wand of Orcus — grants deathtouch
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Throwing Knife — sacrifices itself

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

anything attacks — 6,618 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness attacks:

1. Grim Javelineer — gives +1/+0
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Fire Navy Trebuchet — makes a token
4. Hollowmurk Siege — puts a counter on a creature
5. Stensian Sanguinist // Exsanguinate — grants deathtouch
6. Rev, Tithe Extractor — grants deathtouch
7. Boggart Prankster — gives +1/+0
8. Campsite Cuisine — sacrifices a Food
9. Toph, Earthbending Master — puts a counter on a permanent
10. Twins of Discord — triggers

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

a creature blocks — 6,618 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Barrow-Blade — strips abilities
3. Favor of the Woods — gains you 3 life
4. Gift of the Woods — gives +0/+3
5. Noxious Assault — puts a counter on a permanent
6. Ferocity — puts a counter on a permanent
7. Mammoth Harness — grants first strike
8. Dead-Iron Sledge — kills a creature

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

a creature deals combat damage — 6,618 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

1. Hive Mind Coprocessor — When Cloud of Darkness deals combat damage, Hive Mind Coprocessor makes you lose life

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

a creature is cast — 6,648 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness is cast:

1. Primeval Bounty — makes a token
2. Bloodbond March — brings a card back
3. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
4. Endrek Sahr, Master Breeder — makes that spell's mana value tokens
5. Summon: Fenrir — it arrives with counters thanks to Summon: Fenrir
6. Mona Lisa, Ever Adaptable — makes a token
7. Skittering Horror — sacrifices itself
8. Skittering Skirge — sacrifices itself
9. Skittering Monstrosity — sacrifices itself
10. Silverback Elder — triggers

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

a nontoken creature enters the battlefield — 6,890 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness enters:

1. Dual Nature — makes a token
2. Bramble Sovereign — makes a token
3. Soul of the Harvest — draws you 1 card
4. Surrak and Goreclaw — puts a counter on a permanent
5. Rocksteady, Mutant Marauder — puts a counter on a creature
6. Radagast the Brown — searches a library
7. Minion Reflector — makes a token
8. The Great Henge — puts a counter on a permanent
9. Guardian Project — draws you 1 card
10. Warden of the Grove — triggers

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

a creature enters the battlefield — 7,436 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

When Cloud of Darkness enters:

1. Legolas Greenleaf — puts a counter on a permanent
2. Ayara, First of Locthwain — makes each opponent lose 1 life
3. Blasting Station — untaps itself
4. Bloodline Pretender — puts a +1/+1 counter on itself
5. Scurry Oak — puts a counter on itself
6. Soultether Golem — puts a time counter on itself
7. Monkey Cage — sacrifices itself
8. Tainted Aether — makes a player sacrifice a creature or land
9. Lethal Vapors — kills it
10. Spreading Plague — kills a creature

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

anything enters the battlefield — 10,697 cards in Cloud of Darkness's colors can cause this (Cloud of Darkness is one).

1. Nature's Wrath — When Cloud of Darkness enters, Nature's Wrath makes a player sacrifice a Swamp or permanent

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