The Ur-Dragon

hits creature — 2,298 cards in The Ur-Dragon's colors can cause this.

1. Jalira, Master Polymorphist — Jalira, Master Polymorphist can put The Ur-Dragon onto the battlefield from your library
2. Polymorph — Polymorph can put The Ur-Dragon onto the battlefield from your library
3. Birthing Ritual — Birthing Ritual can put The Ur-Dragon onto the battlefield from your library
4. Industrial Advancement — Industrial Advancement can put The Ur-Dragon onto the battlefield from your library
5. Killer Instinct — Killer Instinct can put The Ur-Dragon onto the battlefield from your library
6. Arthur, Marigold Knight — Arthur, Marigold Knight can put The Ur-Dragon onto the battlefield from your library
7. Proteus Staff — Proteus Staff can put The Ur-Dragon onto the battlefield from your library
8. Synthetic Destiny — Synthetic Destiny can put The Ur-Dragon onto the battlefield from your library
9. Divergent Transformations — Divergent Transformations can put The Ur-Dragon onto the battlefield from your library
10. Transmogrify — Transmogrify can put The Ur-Dragon onto the battlefield from your library
11. Mass Polymorph — Mass Polymorph can put The Ur-Dragon onto the battlefield from your library
12. Chaos Mutation — Chaos Mutation can put The Ur-Dragon onto the battlefield from your library
13. Lukka, Coppercoat Outcast — Lukka, Coppercoat Outcast can put The Ur-Dragon onto the battlefield from your library
14. Identity Echo — Identity Echo can put The Ur-Dragon onto the battlefield from your library
15. Jace, Multiverse Architect — Jace, Multiverse Architect can put The Ur-Dragon onto the battlefield from your library

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

a nontoken permanent enters the battlefield — 142 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon enters:

1. Spot, Felis catus — makes a token
2. Arbaaz Mir — deals 1 damage
3. Cadric, Soul Kindler — makes a token

a permanent enters the battlefield — 152 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

1. Dawn-Blessed Pennant — When a permanent enters thanks to The Ur-Dragon, Dawn-Blessed Pennant gains you 1 life
2. Jean-Luc Picard, Luminary — When The Ur-Dragon enters, Jean-Luc Picard, Luminary draws you 1 card
3. Altar of the Brood — When a permanent enters thanks to The Ur-Dragon, Altar of the Brood mills a card
4. Yoshimaru, Ever Faithful — When The Ur-Dragon enters, Yoshimaru, Ever Faithful puts a +1/+1 counter on itself
5. Amareth, the Lustrous — When a permanent enters thanks to The Ur-Dragon, Amareth, the Lustrous searches a library
6. Rimefire Torque — When a permanent enters thanks to The Ur-Dragon, Rimefire Torque puts a charge counter on itself
7. Eye of Singularity — When a permanent enters thanks to The Ur-Dragon, Eye of Singularity kills a permanent

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

a Dragon attacks — 474 cards in The Ur-Dragon's colors can cause this.

1. Silumgar, the Drifting Death — When The Ur-Dragon attacks, Silumgar, the Drifting Death shrinks a creature by -1/-1
2. Utvara Hellkite — When The Ur-Dragon attacks, Utvara Hellkite makes a token
3. Atarka, World Render — When The Ur-Dragon attacks, Atarka, World Render grants double strike
4. Kolaghan, the Storm's Fury — When The Ur-Dragon attacks, Kolaghan, the Storm's Fury gives +1/+0
5. Invasion of Tarkir // Defiant Thundermaw — When The Ur-Dragon attacks, Invasion of Tarkir // Defiant Thundermaw deals 2 damage
6. Brainstealer Dragon — When Brainstealer Dragon attacks, The Ur-Dragon draws you that many cards
7. Traxos, Scourge Eternal — When Traxos, Scourge Eternal attacks, The Ur-Dragon draws you that many cards
8. Terror of the Peaks — When Terror of the Peaks attacks, The Ur-Dragon draws you that many cards
9. Arcades, the Strategist — When Arcades, the Strategist attacks, The Ur-Dragon draws you that many cards
10. Twinflame Tyrant — When Twinflame Tyrant attacks, The Ur-Dragon draws you that many cards
11. Boltwing Marauder — When Boltwing Marauder attacks, The Ur-Dragon draws you that many cards
12. Swashbuckler Extraordinaire — When Swashbuckler Extraordinaire attacks, The Ur-Dragon draws you that many cards
13. Dragonlord Kolaghan — When Dragonlord Kolaghan attacks, The Ur-Dragon draws you that many cards
14. Old Gnawbone — When Old Gnawbone attacks, The Ur-Dragon draws you that many cards
15. Ancestor Dragon — When Ancestor Dragon attacks, The Ur-Dragon draws you that many cards
16. Ojutai, Soul of Winter — When The Ur-Dragon attacks, Ojutai, Soul of Winter taps a creature, artifact, enchantment, planeswalker or battle an opponent controls
17. Dromoka, the Eternal — When The Ur-Dragon attacks, Dromoka, the Eternal puts a counter on a permanent

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

a Dragon deals combat damage — 474 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon deals combat damage:

1. Parapet Thrasher — triggers
2. Broodcaller Scourge — puts a permanent onto the battlefield
3. Zurgo and Ojutai — triggers

a nontoken Dragon enters the battlefield — 484 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon enters:

1. Lathliss, Dragon Queen — makes a token
2. Miirym, Sentinel Wyrm — makes a token

a Dragon enters the battlefield — 524 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon enters:

1. Dragon Tempest — deals damage
2. Bloomvine Regent // Claim Territory — gains you 3 life
3. Sarkhan, Dragon Ascendant — puts a +1/+1 counter on itself
4. Ganax, Astral Hunter — makes a token
5. Scourge of Valkas — deals damage
6. Bladewing's Thrall — returns itself from the graveyard
7. Sarkhan, Soul Aflame — copies a permanent
8. Teeming Dragonstorm — triggers
9. Corroding Dragonstorm — triggers
10. Roiling Dragonstorm — triggers

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

a card is drawn — 3,815 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon makes a player draw a card:

1. Temmet, Naktamun's Will — gives +1/+1
2. Niv-Mizzet, Parun — deals 1 damage
3. Aether Syphon — mills a card
4. The Locust God — makes a token
5. Starving Revenant — makes each opponent lose 1 life
6. Diviner's Wand — gets +1/+1
7. Ominous Seas — puts a foreshadow counter on itself
8. Dream Trawler — gets +1/+0
9. Iron Man, Armored Avenger — puts a counter on a creature
10. The Astonishing Ant-Man — puts a +1/+1 counter on itself

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

anything attacks — 17,934 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

When The Ur-Dragon attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Invisible Woman — triggers
3. Caesar, Legion's Emperor — sacrifices a creature

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

a creature enters the battlefield — 19,800 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

1. Orcish Bowmasters — When Orcish Bowmasters enters thanks to The Ur-Dragon, it deals 1 damage
2. Quantum Riddler — When Quantum Riddler enters thanks to The Ur-Dragon, it draws you 1 card
3. Fire Nation Salvagers — When Fire Nation Salvagers enters thanks to The Ur-Dragon, it puts a counter on a creature or Vehicle
4. Goblin Goliath — When Goblin Goliath enters thanks to The Ur-Dragon, it makes a token

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

anything enters the battlefield — 26,499 cards in The Ur-Dragon's colors can cause this (The Ur-Dragon is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a permanent enters thanks to The Ur-Dragon, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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