edhseer Commander synergy, explained
Legendary Creature — Human Officer
Not yet released — 13 Nov 2026
Mana cost: {1}{R}
First strike
Whenever Beckett Mariner becomes tapped, put a promotion counter on her. Then if there are three or more promotion counters on her, remove those counters and she deals 2 damage to each opponent.
triggered — puts a counter on it
triggered —
triggered — deals 2 damage
Causes: put a counter on anything, remove a counter from anything, anything deals noncombat damage.
Cares about: nothing.
anything deals noncombat damage — 1,797 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign deals noncombat damage:
27 other cards care about it too. These are the ones with the most connections.
life is lost — 1,257 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign makes a player lose life:
6 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 793 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
3 other cards care about it too. These are the ones with the most connections.
a Human enters the battlefield — 661 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign enters:
a creature attacks — 3,451 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign attacks:
58 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,451 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign blocks:
1 other card cares about it too. These are the ones with the most connections.
anything attacks — 3,451 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign attacks:
19 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,468 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign is cast:
10 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 3,801 cards in Beckett Mariner's colors can cause this (Beckett Mariner is one).
When Beckett Mariner, Impetuous Ensign enters:
65 other cards care about it too. These are the ones with the most connections.