Citanul Hierophants

a Human enters the battlefield — 4,592 cards in the game can cause this (Citanul Hierophants is one).

When Citanul Hierophants enters:

1. General Kudro of Drannith — hits a graveyard
2. Heronblade Elite — puts a +1/+1 counter on itself
3. Kyler, Sigardian Emissary — puts a +1/+1 counter on itself
4. Captain of the Mists — untaps itself
5. Thalia's Lieutenant — puts a +1/+1 counter on itself
6. Champion of the Parish — puts a +1/+1 counter on itself
7. Erkenbrand, Lord of Westfold — gives +1/+0
8. Beregond of the Guard — gives +1/+1
9. Théoden, King of Rohan — grants double strike
10. Lossarnach Captain — taps a creature an opponent controls

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

anything attacks — 17,785 cards in the game can cause this (Citanul Hierophants is one).

When Citanul Hierophants attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Grim Javelineer — gives +1/+0
4. Invisible Woman — triggers
5. Caesar, Legion's Emperor — sacrifices a creature
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Banon, the Returners' Leader — draws and discards
10. Toph, Earthbending Master — puts a counter on a permanent

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

a creature attacks — 17,785 cards in the game can cause this (Citanul Hierophants is one).

When Citanul Hierophants 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. Anim Pakal, Thousandth Moon — puts a +1/+1 counter on itself
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

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

a nontoken creature attacks — 17,785 cards in the game can cause this (Citanul Hierophants is one).

When Citanul Hierophants attacks:

1. Mardu Ascendancy — makes a token
2. Basri Ket — makes that many tokens
3. Militia's Pride — makes a token

a creature it grants abilities to — 19,235 cards in the game can cause this (Citanul Hierophants is one).

Citanul Hierophants gives:

1. Pollywog Prodigy — an extra ability
2. Soul-Scar Mage — an extra ability
3. Tomik, Izzet Sparkmage — an extra ability
4. Havengul Lich — an extra ability
5. Saheeli, Radiant Creator — an extra ability
6. Windrider Wizard — an extra ability
7. Master of Winds — an extra ability
8. Sokka, Bold Boomeranger — an extra ability
9. Rockslide Sorcerer — an extra ability
10. Umara Wizard // Umara Skyfalls — an extra ability

19,224 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 19,635 cards in the game can cause this (Citanul Hierophants is one).

When Citanul Hierophants enters:

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

3,004 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 26,290 cards in the game can cause this (Citanul Hierophants is one).

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

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