Gwenna, Eyes of Gaea 185 (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 - $9.20
LP - $7.40
MP - $5.50
HP - $3.70
DMG - $1.90