Serum Tank

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

When Serum Tank 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 (Serum Tank is one).

When Serum Tank enters:

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

a card is drawn — 3,815 cards in the game can cause this (Serum Tank is one).

When Serum Tank 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 gets a counter — 4,415 cards in the game can cause this (Serum Tank is one).

1. All Will Be One — When Serum Tank gets a counter, All Will Be One deals that much damage

7 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.

1. Transplant Theorist — When Serum Tank enters, Transplant Theorist draws you 1 card
2. Elvish Archivist — When Serum Tank enters, Elvish Archivist puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — When Serum Tank enters, Golbez, Crystal Collector surveils
4. Sludge Strider — When Serum Tank enters, Sludge Strider makes a player lose 1 life
5. Underhanded Designs — When Serum Tank enters, Underhanded Designs makes each opponent lose 1 life
6. Mechan Assembler — When Serum Tank enters, Mechan Assembler makes a token
7. Glassdust Hulk — When Serum Tank enters, Glassdust Hulk gets +1/+1
8. Rook Turret — When Serum Tank enters, Rook Turret draws you 1 card
9. Hedron Detonator — When Serum Tank enters, Hedron Detonator deals 1 damage
10. Pactdoll Terror — When Serum Tank enters, Pactdoll Terror makes each opponent lose 1 life
11. Long-Bodied Grey Dog — When a Treasure enters thanks to Long-Bodied Grey Dog, Serum Tank puts a charge counter on itself
12. Zuko's Exile — When a Clue enters thanks to Zuko's Exile, Serum Tank puts a charge counter on itself

54 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 (Serum Tank is one).

When Serum Tank enters:

1. HYDRA Assault Robot — deals 1 damage
2. Era of Innovation — puts a counter on a permanent you control

41 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 (Serum Tank is one).

When Serum Tank is cast:

1. Sokka, Bold Boomeranger — puts a +1/+1 counter on itself
2. Saheeli, Radiant Creator — puts a counter on a permanent you control

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