edhseer Commander synergy, explained
Legendary Creature — Human Knight
Mana cost: {2}{W}{U}{B}
Flying, lifelink
Ward—Discard a card.
Whenever a modified creature you control attacks, double the number of each kind of counter on it. Then for each nontoken permanent attached to it, create a token that's a copy of that permanent attached to that creature.
triggered — puts counters on it
triggered — makes a token
What a deck led by this card wants
Causes: something is doubled, create a permanent token, put a permanent token onto the battlefield.
Cares about: a creature attacks.
a permanent enters the battlefield — 152 cards in the game can cause this (Arna Kennerüd is one).
9 other cards care about it too. These are the ones with the most connections.
a Knight attacks — 547 cards in the game can cause this (Arna Kennerüd is one).
a Knight deals combat damage — 547 cards in the game can cause this (Arna Kennerüd is one).
a Knight enters the battlefield — 592 cards in the game can cause this (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain enters:
a Knight creature it grants types to — 596 cards in the game can cause this.
594 other cards cause it too. These are the ones with the most connections.
life is gained — 2,076 cards in the game can cause this (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain gains life:
84 other cards care about it too. These are the ones with the most connections.
a token enters the battlefield — 3,710 cards in the game can cause this (Arna Kennerüd is one).
When a permanent enters thanks to Arna Kennerüd, Skycaptain:
3 other cards care about it too. These are the ones with the most connections.
a token is created — 3,711 cards in the game can cause this (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain makes a token:
17 other cards care about it too. These are the ones with the most connections.
a Human it boosts — 4,598 cards in the game can cause this.
4,597 other cards cause it too. These are the ones with the most connections.
a Human enters the battlefield — 4,639 cards in the game can cause this (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain enters:
2 other cards care about it too. These are the ones with the most connections.
anything attacks — 17,934 cards in the game can cause this (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain attacks:
124 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 (Arna Kennerüd is one).
When Arna Kennerüd, Skycaptain attacks:
191 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 (Arna Kennerüd is one).
306 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 (Arna Kennerüd is one).
51 other cards care about it too. These are the ones with the most connections.