Tek

a Dragon attacks — 474 cards in the game can cause this (Tek is one).

1. Silumgar, the Drifting Death — When Tek attacks, Silumgar, the Drifting Death shrinks a creature by -1/-1
2. Utvara Hellkite — When Tek attacks, Utvara Hellkite makes a token
3. The Ur-Dragon — When Tek attacks, The Ur-Dragon draws you that many cards
4. Atarka, World Render — When Tek attacks, Atarka, World Render grants double strike
5. Kolaghan, the Storm's Fury — When Tek attacks, Kolaghan, the Storm's Fury gives +1/+0
6. Invasion of Tarkir // Defiant Thundermaw — When Tek attacks, Invasion of Tarkir // Defiant Thundermaw deals 2 damage
7. Ojutai, Soul of Winter — When Tek attacks, Ojutai, Soul of Winter taps a creature, artifact, enchantment, planeswalker or battle an opponent controls
8. Dromoka, the Eternal — When Tek attacks, Dromoka, the Eternal puts a counter on a permanent

a Dragon deals combat damage — 474 cards in the game can cause this (Tek is one).

When Tek 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 game can cause this (Tek is one).

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

a Dragon enters the battlefield — 524 cards in the game can cause this (Tek is one).

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

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

an artifact attacks — 1,243 cards in the game can cause this (Tek is one).

1. Alibou, Ancient Witness — When Tek attacks, Alibou, Ancient Witness deals X damage
2. Bio-Asset Allocator — When Tek attacks, Bio-Asset Allocator makes each opponent lose 1 life
3. Assaultron Dominator — When Tek attacks, Assaultron Dominator puts a counter on a permanent
4. Aloy, Savior of Meridian — When Tek attacks, Aloy, Savior of Meridian triggers

an artifact deals combat damage — 1,243 cards in the game can cause this (Tek is one).

When Tek deals combat damage:

1. Locutus of Borg — makes a token
2. Sharding Sphinx — makes a token
3. Antagonist Incorporator — makes a token
4. Research Thief — draws you 1 card
5. Thopter Spy Network — draws you 1 card
6. Hive Mind Coprocessor — makes you lose life
7. Pia Nalaar, Chief Mechanic — puts a counter on a permanent you control
8. Automated Assembly Line — triggers

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

a nontoken artifact deals combat damage — 1,243 cards in the game can cause this (Tek is one).

1. Virulent Silencer — When Tek deals combat damage, Virulent Silencer puts 2 counters on a permanent

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

1. Mendicant Core, Guidelight — When Tek is cast, Mendicant Core, Guidelight copies a spell
2. Sai, Master Thopterist — When Tek is cast, Sai, Master Thopterist makes a token
3. Ravenous Robots — When Tek is cast, Ravenous Robots makes a token
4. Pinnacle Emissary — When Tek is cast, Pinnacle Emissary makes a token
5. Mirrodin Besieged — When Tek is cast, Mirrodin Besieged makes a token
6. Poetic Ingenuity — When Tek is cast, Poetic Ingenuity makes a token
7. Digsite Engineer — When Tek is cast, Digsite Engineer makes a token
8. Myrsmith — When Tek is cast, Myrsmith makes a token
9. Riddlesmith — When Tek is cast, Riddlesmith draws you 1 card
10. Dr. Madison Li — When Tek is cast, 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 (Tek is one).

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

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

1. Transplant Theorist — When Tek enters, Transplant Theorist draws you 1 card
2. Elvish Archivist — When Tek enters, Elvish Archivist puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — When Tek enters, Golbez, Crystal Collector surveils
4. Sludge Strider — When Tek enters, Sludge Strider makes a player lose 1 life
5. Underhanded Designs — When Tek enters, Underhanded Designs makes each opponent lose 1 life

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

a creature is cast — 18,010 cards in the game can cause this (Tek is one).

1. Primeval Bounty — When Tek is cast, Primeval Bounty makes a token

90 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 (Tek is one).

1. Pollywog Prodigy — When Tek enters, Pollywog Prodigy puts a counter on itself

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