Colin, New Blue Moon Recruit

Nonlegendary creatures you control gain -1/-0 and cost {2} less to cast.

Gold Rush - {2}: Whenever you would create a Treasure token create two instead.
Whenever you tap a permanent for mana, it produces twice as much of that mana instead.

Power of Money - {6}: For every three mana in
your mana pool your creatures gain +X/+0.