edhseer Commander synergy, explained
Artifact
Mana cost: {3}
Whenever a creature you control dies, put two eyeball counters on this artifact.
triggered — puts 2 counters on it
Look at the top X cards of your library, where X is the number of eyeball counters removed this way. Put one of them into your hand and the rest on the bottom of your library in any order.
activated {3}, {T}, Remove all eyeball counters from this artifact —
activated {3}, {T}, Remove all eyeball counters from this artifact — searches a library
activated {3}, {T}, Remove all eyeball counters from this artifact — puts cards into your hand
Causes: put a counter on anything, remove a counter from anything, search your library.
Cares about: a creature dies.
an artifact is cast — 3,683 cards in the game can cause this (Jar of Eyeballs is one).
When Jar of Eyeballs 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 (Jar of Eyeballs is one).
When Jar of Eyeballs enters:
anything gets a counter — 4,415 cards in the game can cause this (Jar of Eyeballs 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 (Jar of Eyeballs is one).
When Jar of Eyeballs 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 (Jar of Eyeballs is one).
When Jar of Eyeballs enters:
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 (Jar of Eyeballs is one).
When Jar of Eyeballs is cast:
10 other cards care about it too. These are the ones with the most connections.