edhseer Commander synergy, explained
Creature — Treefolk Shaman
Mana cost: {2}{G}{G}
At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, you may play that card without paying its mana cost.
triggered —
Causes: nothing.
Cares about: an upkeep.
a Treefolk attacks — 165 cards in the game can cause this (Leaf-Crowned Elder is one).
a Treefolk creature enters the battlefield — 172 cards in the game can cause this (Leaf-Crowned Elder is one).
a Treefolk enters the battlefield — 174 cards in the game can cause this (Leaf-Crowned Elder is one).
a Shaman creature enters the battlefield — 539 cards in the game can cause this (Leaf-Crowned Elder is one).
anything attacks — 17,934 cards in the game can cause this (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder attacks:
111 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 (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder attacks:
180 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 (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder 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 (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder attacks:
a creature deals combat damage — 17,934 cards in the game can cause this (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder deals combat damage:
194 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 (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder is cast:
81 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 18,448 cards in the game can cause this (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder enters:
30 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 (Leaf-Crowned Elder is one).
When Leaf-Crowned Elder enters:
299 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 (Leaf-Crowned Elder is one).
39 other cards care about it too. These are the ones with the most connections.