edhseer Commander synergy, explained
Legendary Creature — Avatar Wizard
Mana cost: {2}{G}{G}
Whenever Radagast or another nontoken creature you control enters, look at the top X cards of your library, where X is that creature's mana value. You may reveal a creature card that doesn't share a creature type with a creature you control from among those cards and put it into your hand. Put the rest on the bottom of your library in a random order.
triggered — searches a library
Causes: search your library.
Cares about: a nontoken creature enters the battlefield.
a Wizard creature enters the battlefield — 49 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
a creature attacks — 3,620 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown attacks:
40 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,620 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown attacks:
6 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,620 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown blocks:
1 other card cares about it too. These are the ones with the most connections.
a creature is cast — 3,640 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown is cast:
29 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,710 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown enters:
1 other card cares about it too. These are the ones with the most connections.
a creature enters the battlefield — 4,064 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).
When Radagast the Brown enters:
72 other cards care about it too. These are the ones with the most connections.
anything is cast — 6,998 cards in Radagast the Brown's colors can cause this (Radagast the Brown is one).