Karn, Scion of Urza

a planeswalker it makes cheaper to cast — 312 cards in the game can cause this.

1. Cloud Key — Cloud Key reduces what Karn, Scion of Urza costs
2. Helm of Awakening — Helm of Awakening reduces what Karn, Scion of Urza costs
3. Locket of Yesterdays — Locket of Yesterdays reduces what Karn, Scion of Urza costs
4. Seal of the Guildpact — Seal of the Guildpact reduces what Karn, Scion of Urza costs
5. Stone Calendar — Stone Calendar reduces what Karn, Scion of Urza costs
6. Trinisphere — Trinisphere reduces what Karn, Scion of Urza costs

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

a planeswalker it applies animate to — 312 cards in the game can cause this.

1. Thran Lens — Thran Lens gives Karn, Scion of Urza life as a creature

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

a planeswalker it grants abilities to — 312 cards in the game can cause this.

1. Thrumming Stone — Thrumming Stone gives Karn, Scion of Urza ripple

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

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

When Karn, Scion of Urza is cast:

1. Jaya's Phoenix — returns itself from the graveyard
2. Interplanar Beacon — gains you 1 life
3. Primeval Bounty — puts 3 counters on a creature
4. Tetsuko Umezawa, Pursuer — gets +1/+1
5. Thor, God of Thunder — deals that spell's mana value damage
6. Krile Baldesion — brings a card back
7. Summon: Good King Mog XII — makes a token
8. Kykar, Wind's Fury — makes a token
9. Tellah, Great Sage — makes a token
10. Blood Funnel — sacrifices a creature

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

a planeswalker enters the battlefield — 366 cards in the game can cause this (Karn is one).

1. Liliana the Repentant — When a Construct enters thanks to Karn, Scion of Urza, Liliana the Repentant mills a card
2. Liliana the Faultless — When a Construct enters thanks to Karn, Scion of Urza, Liliana the Faultless gains you 1 life
3. Builder's Talent — When Karn, Scion of Urza enters, Builder's Talent puts a counter on a creature
4. Brainstealer Dragon — When a Construct enters thanks to Karn, Scion of Urza, Brainstealer Dragon makes a player lose life equal to its mana value
5. Cloudstone Curio — When Karn, Scion of Urza enters, Cloudstone Curio triggers

anything is exiled — 2,497 cards in the game can cause this (Karn is one).

1. The War Doctor — When a permanent is exiled thanks to Karn, Scion of Urza, The War Doctor puts a time counter on itself

a creature token enters the battlefield — 2,799 cards in the game can cause this (Karn is one).

When a Construct enters thanks to Karn, Scion of Urza:

1. Securitron Squadron — puts a counter on a permanent
2. Anointer Priest — gains you 1 life
3. Nesting Dovehawk — puts a +1/+1 counter on itself

a creature token is created — 2,799 cards in the game can cause this (Karn is one).

1. Staff of the Storyteller — When Karn, Scion of Urza makes a Construct token, Staff of the Storyteller puts a story counter on itself

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

an artifact you control — 3,641 cards in the game can cause this.

1. Relic Amulet — While you control Relic Amulet, Karn, Scion of Urza counts it and makes more tokens
2. Chimeric Egg — While you control Chimeric Egg, Karn, Scion of Urza counts it and makes more tokens

3,639 other cards use it too. These are the ones with the most connections.

a token enters the battlefield — 3,710 cards in the game can cause this (Karn is one).

When a Construct enters thanks to Karn, Scion of Urza:

1. Baron Bertram Graywater — makes a token
2. Marneus Calgar — draws you 1 card
3. Belladonna Took — gains you 1 life
4. Kambal, Profiteering Mayor — makes each opponent lose 1 life
5. Lucy MacLean, Positively Armed — makes a token
6. Mister Fantastic, Reed Richards — draws you 1 card
7. Cloakwood Swarmkeeper — puts a +1/+1 counter on itself
8. Woodland Champion — puts that many +1/+1 counters on itself
9. Leonardo, the Balance — puts a counter on a creature
10. Spiritcall Enthusiast // Scrollboost — becomes prepared

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

a token is created — 3,711 cards in the game can cause this (Karn is one).

When Karn, Scion of Urza makes a Construct token:

1. Akim, the Soaring Wind — makes a token
2. Idol of Oblivion — draws you 1 card
3. Rosie Cotton of South Lane — puts a counter on a permanent
4. Mirkwood Bats — makes each opponent lose 1 life

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

anything gets a counter — 4,415 cards in the game can cause this (Karn is one).

1. All Will Be One — When a permanent gets a counter thanks to Karn, Scion of Urza, All Will Be One deals that much damage

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

an artifact enters the battlefield — 4,643 cards in the game can cause this (Karn is one).

When a Construct enters thanks to Karn, Scion of Urza:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life
6. Mechan Assembler — makes a token
7. Glassdust Hulk — gets +1/+1
8. Rook Turret — draws you 1 card
9. Hedron Detonator — deals 1 damage
10. Pactdoll Terror — makes each opponent lose 1 life

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

a creature it applies speed increase to — 19,392 cards in the game can cause this.

1. Skittering Cicada — Skittering Cicada gives Karn, Scion of Urza haste

19,391 other cards cause it too. These are the ones with the most connections.

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

When a Construct enters thanks to Karn, Scion of Urza:

1. Lunarch Veteran // Luminous Phantom — gains you 1 life
2. Pious Evangel // Wayward Disciple — gains you 1 life
3. Daxos, Blessed by the Sun — gains you 1 life
4. Elas il-Kor, Sadistic Pilgrim — gains you 1 life
5. Glaring Fleshraker — deals 1 damage
6. Blasting Station — untaps itself
7. General Kreat, the Boltbringer — deals 1 damage
8. Mogg Bombers — sacrifices itself
9. Flame-Kin War Scout — sacrifices itself
10. Monkey Cage — sacrifices itself

344 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 (Karn is one).

When a Construct enters thanks to Karn, Scion of Urza:

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — puts a +1/+1 counter on itself
2. HYDRA Assault Robot — deals 1 damage
3. Era of Innovation — puts a counter on a permanent you control

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