Gwenna, Eyes of Gaea (The Brothers' War)

{T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells or activate abilities of creature sources. Whenever you cast a creature spell with power 5 or greater, put a +1/+1 counter on Gwenna and untap it.

NM - $6.00
LP - $4.50
MP - $3.50
HP - $2.50
DMG - $1.50