Gyre Sage
Gyre Sage {1}{G}
Creature - Elf Druid | Power/Toughness: 1 / 2
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

{T}: Add {G} to your mana pool for each +1/+1 counter on Gyre Sage.
Latest set: [GTC] Gatecrash (R)