Volrath, the Shapestealer | Knacksaw Clique | Bloom Tender

Cards

All permanents on the battlefield (
Volrath and
Bloom Tender without summoning sickness).

Activate
Volrath by paying ({1} magic symbol) , causing it to become a copy of
Bloom Tender.
Activate
Volrath by tapping it, adding at least ({1} magic symbol) ({B} magic symbol) ({G} magic symbol) ({U} magic symbol) .
Activate
Volrath by paying ({1} magic symbol) , causing it to become a copy of
Knacksaw Clique.
Activate
Volrath by paying ({1} magic symbol) ({U} magic symbol) and untapping it, exiling the top card of an opponent's library with the ability to play it until end of turn.
Repeat.

If you control a white and a red permanent, this combo will net infinite white, black, red and green mana.

Exile each opponent's library with the ability to play the exiled cards until end of turn.
Infinite red mana.
Infinite green mana.
Infinite black mana.
Infinite white mana.