Birch Seer, Forest Elder

Eminence-- As long as Birch Seer, Forest Elder is
in the command zone or on the battlefield, other treefolk cost {1} less to cast
Defender
As long as you control 5 or more treefolk, Birch Seer, Forest Elder can attack as though it didn't have defender.
I have seen more moons rise and fall than your entire lineage has my boy.