Haldan, Avid Arcanist

a land is played — 97 cards in the game can cause this (Haldan is one).

When a land plays a land thanks to Haldan, Avid Arcanist:

1. Flubs, the Fool — draws you 1 card
2. Infernal Sovereign — draws you 1 card
3. Shadow of the Goblin — deals 1 damage
4. The Endstone — draws you 1 card
5. Horn of Greed — makes a player draw 1 card
6. Pangosaur — triggers
7. City of Traitors — sacrifices itself

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

a battle is cast — 100 cards in the game can cause this (Haldan is one).

1. Defiler of Dreams — When Haldan, Avid Arcanist is cast, Defiler of Dreams draws you 1 card
2. Primeval Bounty — When an artifact is cast thanks to Haldan, Avid Arcanist, Primeval Bounty puts 3 counters on a creature
3. Tetsuko Umezawa, Pursuer — When an artifact is cast thanks to Haldan, Avid Arcanist, Tetsuko Umezawa, Pursuer gets +1/+1
4. Thor, God of Thunder — When an artifact is cast thanks to Haldan, Avid Arcanist, Thor, God of Thunder deals that spell's mana value damage
5. Krile Baldesion — When an artifact is cast thanks to Haldan, Avid Arcanist, Krile Baldesion brings a card back
6. Summon: Good King Mog XII — When an artifact is cast thanks to Haldan, Avid Arcanist, Summon: Good King Mog XII makes a token
7. Kykar, Wind's Fury — When an artifact is cast thanks to Haldan, Avid Arcanist, Kykar, Wind's Fury makes a token
8. Tellah, Great Sage — When an artifact is cast thanks to Haldan, Avid Arcanist, Tellah, Great Sage makes a token
9. Blood Funnel — When an artifact is cast thanks to Haldan, Avid Arcanist, Blood Funnel sacrifices a creature
10. Artist's Talent — When an artifact is cast thanks to Haldan, Avid Arcanist, Artist's Talent draws and discards

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

a planeswalker is cast — 361 cards in the game can cause this (Haldan is one).

1. Jaya's Phoenix — When a planeswalker is cast thanks to Haldan, Avid Arcanist, Jaya's Phoenix returns itself from the graveyard
2. Interplanar Beacon — When a planeswalker is cast thanks to Haldan, Avid Arcanist, Interplanar Beacon gains you 1 life
3. Varis, Silverymoon Ranger — When Haldan, Avid Arcanist is cast, Varis, Silverymoon Ranger triggers

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

a nontoken Wizard enters the battlefield — 1,243 cards in the game can cause this (Haldan is one).

1. Inalla, Archmage Ritualist — When Haldan, Avid Arcanist enters, Inalla, Archmage Ritualist makes a token

a Wizard creature enters the battlefield — 1,264 cards in the game can cause this (Haldan is one).

1. Diviner's Wand — When Haldan, Avid Arcanist enters, Diviner's Wand triggers

an enchantment is cast — 3,673 cards in the game can cause this (Haldan is one).

When an enchantment is cast thanks to Haldan, Avid Arcanist:

1. Hallowed Haunting — makes a token
2. Daxos the Returned — puts a counter on a permanent
3. Tatsunari, Toad Rider — makes a token
4. Sythis, Harvest's Hand — gains you 1 life
5. Sigil of the Empty Throne — makes a token
6. Dawnhart Geist — gains you 2 life
7. Herald of the Pantheon — gains you 1 life
8. Kami of Transience — puts a +1/+1 counter on itself
9. Argothian Enchantress — draws you 1 card
10. Mesa Enchantress — draws you 1 card

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

an artifact is cast — 3,683 cards in the game can cause this (Haldan is one).

When an artifact is cast thanks to Haldan, Avid Arcanist:

1. Mendicant Core, Guidelight — copies a spell
2. Sai, Master Thopterist — makes a token
3. Ravenous Robots — makes a token
4. Pinnacle Emissary — makes a token
5. Mirrodin Besieged — makes a token
6. Poetic Ingenuity — makes a token
7. Digsite Engineer — makes a token
8. Myrsmith — makes a token
9. Riddlesmith — draws you 1 card
10. Dr. Madison Li — puts a counter on a permanent you control

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

a sorcery is cast — 3,720 cards in the game can cause this (Haldan is one).

1. Spellweaver Volute — When a sorcery is cast thanks to Haldan, Avid Arcanist, Spellweaver Volute copies a spell
2. Riku of Two Reflections — When an instant is cast thanks to Haldan, Avid Arcanist, Riku of Two Reflections copies a spell
3. Sword of Wealth and Power — When an instant is cast thanks to Haldan, Avid Arcanist, Sword of Wealth and Power copies a spell
4. Extus, Oriq Overlord // Awaken the Blood Avatar — When an instant is cast thanks to Haldan, Avid Arcanist, Extus, Oriq Overlord // Awaken the Blood Avatar brings a card back
5. Metallurgic Summonings — When an instant is cast thanks to Haldan, Avid Arcanist, Metallurgic Summonings makes a token
6. Storm-Kiln Artist — When an instant is cast thanks to Haldan, Avid Arcanist, Storm-Kiln Artist makes a token
7. Niv-Mizzet, Parun — When an instant is cast thanks to Haldan, Avid Arcanist, Niv-Mizzet, Parun draws you 1 card
8. Tor Wauki the Younger — When an instant is cast thanks to Haldan, Avid Arcanist, Tor Wauki the Younger deals 2 damage
9. Mica, Reader of Ruins — When an instant is cast thanks to Haldan, Avid Arcanist, Mica, Reader of Ruins sacrifices an artifact
10. Summon: G.F. Cerberus — When an instant is cast thanks to Haldan, Avid Arcanist, Summon: G.F. Cerberus triggers

424 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 (Haldan is one).

1. Pollywog Prodigy — When Haldan, Avid Arcanist enters, Pollywog Prodigy puts a counter on itself

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