Volker, Deepwood Sorcerer

Landfall -- Whenever a land enters the battlefield
under your control, lands you control can be
tapped for any color of mana until end of turn.
Whenever you cast an instant or sorcery spell,
put a +1/+1 counter on Volker, Deepwood
Sorcerer.
He studies the arcane secrets held within every
tree and stream.