edhseer Commander synergy, explained
Creature — Merfolk Rogue
Mana cost: {1}{U}
Vigilance
Whenever this creature attacks, you may tap another untapped creature you control. If you do, this creature can't be blocked this turn.
triggered — restricts what can block it
Causes: nothing.
Cares about: nothing.
a Merfolk deals combat damage — 386 cards in the game can cause this (Gravelgill Scoundrel is one).
a Merfolk enters the battlefield — 397 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel enters:
a Rogue attacks — 636 cards in the game can cause this (Gravelgill Scoundrel is one).
a Rogue deals combat damage — 636 cards in the game can cause this (Gravelgill Scoundrel is one).
2 other cards care about it too. These are the ones with the most connections.
a Rogue creature enters the battlefield — 657 cards in the game can cause this (Gravelgill Scoundrel is one).
a Rogue enters the battlefield — 659 cards in the game can cause this (Gravelgill Scoundrel is one).
anything attacks — 17,934 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel attacks:
114 other cards care about it too. These are the ones with the most connections.
a creature attacks — 17,934 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel attacks:
181 other cards care about it too. These are the ones with the most connections.
a creature blocks — 17,934 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel blocks:
18 other cards care about it too. These are the ones with the most connections.
a nontoken creature attacks — 17,934 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel attacks:
a creature deals combat damage — 17,934 cards in the game can cause this (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel deals combat damage:
195 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 (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel is cast:
82 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 (Gravelgill Scoundrel is one).
When Gravelgill Scoundrel enters:
310 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 (Gravelgill Scoundrel is one).
39 other cards care about it too. These are the ones with the most connections.