Activate Lotus Bloom by tapping and sacrificing it, adding ({W} magic symbol) ({W} magic symbol) ({W} magic symbol) or ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Cast Mirrormade by paying ({1} magic symbol) ({U} magic symbol) ({U} magic symbol) , having it enter the battlefield as a copy of Seat of the Synod.
Activate Mirrormade by tapping it, adding ({U} magic symbol) .
Activate Tameshi's second ability by paying ({W} magic symbol) and returning Mirrormade from the battlefield to your hand, returning Lotus Bloom from your graveyard to the battlefield.