Halo Hunter

a Demon enters the battlefield — 284 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter enters:

1. Blood Speaker — returns itself from the graveyard
2. Be'lakor, the Dark Master — deals its power damage

a card in a graveyard — 7,589 cards in the game can cause this (Halo Hunter is one).

1. Heart-Shaped Herb — Halo Hunter puts cards into the graveyard that Heart-Shaped Herb can bring back
2. Enlightened Confidant — Halo Hunter puts cards into the graveyard that Enlightened Confidant can bring back
3. Tergrid, God of Fright // Tergrid's Lantern — Halo Hunter puts cards into the graveyard that Tergrid, God of Fright // Tergrid's Lantern can bring back
4. Grazing Kelpie — Halo Hunter puts cards into the graveyard that Grazing Kelpie can bring back
5. Dauthi Voidwalker — Cards Halo Hunter would put into an opponent's graveyard are exiled by Dauthi Voidwalker instead, and it can play from among them
6. Endurance — Halo Hunter puts cards into the graveyard that Endurance can bring back
7. Thieves' Guild Enforcer — Halo Hunter fills an opponent's graveyard toward the 8 or more cards Thieves' Guild Enforcer needs
8. Soaring Thought-Thief — Halo Hunter fills an opponent's graveyard toward the 8 or more cards Soaring Thought-Thief needs
9. Athreos, Shroud-Veiled — Halo Hunter puts cards into the graveyard that Athreos, Shroud-Veiled can bring back
10. Merfolk Windrobber — Halo Hunter fills an opponent's graveyard toward the 8 or more cards Merfolk Windrobber needs

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 (Halo Hunter is one).

When an Angel hits the graveyard thanks to Halo Hunter:

1. The Haunt of Hightower — puts a +1/+1 counter on itself
2. Duskmantle Guildmage — makes each opponent lose 1 life
3. Vulturous Zombie — puts a +1/+1 counter on itself
4. Bloodchief Ascension — makes each opponent lose 2 life
5. Planar Void — hits a graveyard

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

anything attacks — 17,934 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter attacks:

1. Shaun, Father of Synths — makes a token
2. Far Fortune, End Boss — deals 1 damage
3. Temmet, Naktamun's Will — draws you 1 card
4. Optimus Prime, Hero // Optimus Prime, Autobot Leader — puts a counter on a permanent
5. Invisible Woman — triggers
6. Caesar, Legion's Emperor — sacrifices a creature
7. Guide of Souls — triggers
8. Campsite Cuisine — sacrifices a Food
9. Gossip's Talent — triggers
10. Banon, the Returners' Leader — draws and discards

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

a creature attacks — 17,934 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Jolene, Plundering Pugilist — makes a token
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. Total War — kills a creature

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

a creature blocks — 17,934 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Tide of War — sacrifices a creature
4. Dead-Iron Sledge — kills a creature
5. Dwindle — kills a creature

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

a nontoken creature attacks — 17,934 cards in the game can cause this (Halo Hunter is one).

1. Mardu Ascendancy — When Halo Hunter attacks, Mardu Ascendancy makes a token

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

a creature is cast — 18,010 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter is cast:

1. God-Eternal Oketra — makes a token
2. Bloodbond March — brings a card back

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

a nontoken creature enters the battlefield — 18,448 cards in the game can cause this (Halo Hunter is one).

1. Samwise Gamgee — When Halo Hunter enters, Samwise Gamgee makes a token

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

a creature enters the battlefield — 19,800 cards in the game can cause this (Halo Hunter is one).

When Halo Hunter enters:

1. Enduring Courage — gives +2/+0
2. Slash, Reptile Rampager — deals 2 damage
3. Ray Fillet, Wave Warrior — puts a counter on itself
4. The Neutrinos — gets +1/+0
5. Wingnut, Bat on the Belfry — grants flying, haste and menace
6. Aetherstorm Roc — puts a counter on a permanent you control
7. Raphael, Most Attitude — exiles a card from your library

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

anything enters the battlefield — 26,499 cards in the game can cause this (Halo Hunter is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Halo Hunter enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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