edhseer Commander synergy, explained
Artifact
Mana cost: {4}
Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep.
activated {2}, {T} — puts a counter on it
When this artifact is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with this artifact but that a mire counter has not been removed from with this artifact.
triggered —
Causes: put a counter on a land, remove a counter from anything.
Cares about: nothing.
an artifact is put into a graveyard from the battlefield — 1,254 cards in the game can cause this.
1,253 other cards cause it too. These are the ones with the most connections.
an artifact is cast — 3,683 cards in the game can cause this (Cyclopean Tomb is one).
When Cyclopean Tomb is cast:
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 (Cyclopean Tomb is one).
When Cyclopean Tomb enters:
anything gets a counter — 4,415 cards in the game can cause this (Cyclopean Tomb is one).
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 (Cyclopean Tomb is one).
When Cyclopean Tomb enters:
55 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 (Cyclopean Tomb is one).
When Cyclopean Tomb enters:
40 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 (Cyclopean Tomb is one).
When Cyclopean Tomb is cast:
10 other cards care about it too. These are the ones with the most connections.