Heliod, the Radiant Dawn // Heliod, the Warped Eclipse

anything leaves a graveyard — 716 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse leaves a graveyard:

1. On Wings of Gold — makes a token
2. Owlin Historian — gets +1/+1

an enchantment is cast — 1,553 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse is cast:

1. Hallowed Haunting — makes a token
2. Sigil of the Empty Throne — makes a token
3. Dawnhart Geist — gains you 2 life
4. Mesa Enchantress — draws you 1 card
5. Blessed Spirits — puts a +1/+1 counter on itself
6. Celestial Ancient — puts a counter on a creature
7. Secret Arcade // Dusty Parlor — puts that spell's mana value counters on a creature
8. Defiler of Faith — makes a token
9. Defiler of Dreams — draws you 1 card
10. Presence of the Master — counters a spell

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

a nontoken enchantment enters the battlefield — 1,590 cards in Heliod's colors can cause this (Heliod is one).

1. Historian's Boon — When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse enters, Historian's Boon makes a token

an enchantment enters the battlefield — 1,607 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse enters:

1. Ghostly Dancers — makes a token
2. Thassa's Devourer — mills a card
3. Archon of Sun's Grace — makes a token
4. Unwilling Vessel — puts a possession counter on itself
5. Gremlin Tamer — makes a token
6. Ajani's Chosen — makes a token
7. Shoal Kraken — draws you 1 card
8. Sage of Mysteries — mills a card
9. Scrabbling Skullcrab — mills a card
10. Fear of Sleep Paralysis — taps a creature

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

anything attacks — 6,349 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse attacks:

1. Sparring Regimen — puts a counter on a creature
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Surgical Suite // Hospital Room — puts a counter on a creature
4. Madame Web, Clairvoyant — mills a card
5. Apothecary White — makes a token
6. Adeline, Resplendent Cathar — makes a token
7. Dalkovan Encampment — makes 2 tokens
8. Guide of Souls — triggers
9. Gossip's Talent — triggers
10. Warren Warleader — triggers

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

a creature attacks — 6,349 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Screaming Swarm — mills a card
4. Imperious Mindbreaker — mills a card
5. Staff of Titania — makes a token
6. Glory Bearers — gives +0/+1
7. Saw — sacrifices a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Super-Soldier Serum — triggers
10. Throwing Knife — sacrifices itself

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

a creature blocks — 6,349 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse blocks:

1. Barrow-Blade — strips abilities
2. Noble Stand — gains you 2 life
3. Battle Cry — gives +0/+1
4. Dead-Iron Sledge — kills a creature
5. Dwindle — kills a creature
6. Shield of the Righteous — triggers

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

a nontoken creature attacks — 6,349 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse attacks:

1. Basri Ket — makes a token
2. Militia's Pride — makes a token

a creature it makes cheaper to cast — 6,940 cards in Heliod's colors can cause this (Heliod is one).

Heliod, the Radiant Dawn // Heliod, the Warped Eclipse reduces what:

1. Extravagant Replication — costs
2. Thopter Spy Network — costs
3. Dovin, Grand Arbiter — costs
4. Metallurgic Summonings — costs
5. Urza's Command — costs
6. Elesh Norn // The Argent Etchings — costs

6,933 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 7,093 cards in Heliod's colors can cause this (Heliod is one).

When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse enters:

1. Airbender Ascension — puts a quest counter on itself
2. Aetherstorm Roc — puts a counter on a permanent you control

1,210 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 10,721 cards in Heliod's colors can cause this (Heliod is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Heliod, the Radiant Dawn // Heliod, the Warped Eclipse enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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