edhseer Commander synergy, explained
Legendary Creature — Human Wizard
Mana cost: {1}{U}{U}
When Barrin enters, return up to one other target creature or planeswalker to its owner's hand.
triggered — bounce
At the beginning of your end step, if a permanent was put into your hand from the battlefield this turn, draw a card.
triggered — draws you 1 card
Causes: a creature leaves the battlefield, a planeswalker leaves the battlefield, draw a card.
Cares about: nothing.
a Wizard creature enters the battlefield — 566 cards in Barrin's colors can cause this (Barrin is one).
a card is drawn — 1,454 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage makes a player draw a card:
25 other cards care about it too. These are the ones with the most connections.
a Human enters the battlefield — 634 cards in Barrin's colors can cause this (Barrin is one).
a creature attacks — 3,238 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage attacks:
44 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,238 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage attacks:
4 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,238 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage blocks:
1 other card cares about it too. These are the ones with the most connections.
a creature is cast — 3,254 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage is cast:
12 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,316 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage enters:
2 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 3,581 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage enters:
34 other cards care about it too. These are the ones with the most connections.
anything is cast — 7,036 cards in Barrin's colors can cause this (Barrin is one).
When Barrin, Tolarian Archmage is cast:
2 other cards care about it too. These are the ones with the most connections.