Planar Bridge

a nontoken permanent enters the battlefield — 142 cards in the game can cause this (Planar Bridge is one).

When Planar Bridge 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 game can cause this (Planar Bridge is one).

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

9 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 (Planar Bridge is one).

When Planar Bridge is cast:

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 nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Planar Bridge is one).

When a permanent enters thanks to Planar Bridge:

1. Ultron, Artificial Malevolence — makes a token
2. The Prydwen, Steel Flagship — makes a token
3. Conquest Mission — puts a quest counter on itself
4. Surge Conductor — proliferates
5. Replication Specialist — makes a token
6. Weapons Manufacturing — makes a token
7. Mirrorworks — makes a token

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

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

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

anything that is not a token enters the battlefield — 25,747 cards in the game can cause this (Planar Bridge is one).

1. Canoptek Spyder — When a permanent enters thanks to Planar Bridge, Canoptek Spyder draws you 1 card

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

1. Wan Shi Tong, Librarian — When Wan Shi Tong, Librarian enters thanks to Planar Bridge, it puts X counters on a permanent
2. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a permanent enters thanks to Planar Bridge, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
3. HYDRA Assault Robot — When a permanent enters thanks to Planar Bridge, HYDRA Assault Robot deals 1 damage
4. Ertha Jo, Frontier Mentor — When Ertha Jo, Frontier Mentor enters thanks to Planar Bridge, it makes a token
5. Breya, Etherium Shaper — When Breya, Etherium Shaper enters thanks to Planar Bridge, it makes 2 tokens
6. Pia and Kiran Nalaar — When Pia and Kiran Nalaar enters thanks to Planar Bridge, it makes 2 tokens
7. Tetzin, Gnome Champion // The Golden-Gear Colossus — When Tetzin, Gnome Champion // The Golden-Gear Colossus enters thanks to Planar Bridge, it triggers
8. Sokka, Bold Boomeranger — When Sokka, Bold Boomeranger enters thanks to Planar Bridge, it draws and discards
9. Era of Innovation — When a permanent enters thanks to Planar Bridge, Era of Innovation puts a counter on a permanent you control
10. Daretti, Rocketeer Engineer — When Daretti, Rocketeer Engineer enters thanks to Planar Bridge, it sacrifices an artifact

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

anything is cast — 31,128 cards in the game can cause this (Planar Bridge is one).

1. Saheeli, Radiant Creator — When Planar Bridge is cast, Saheeli, Radiant Creator puts a counter on a permanent you control

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