Yakuna, Forest Princess

: Forests you control produce an extra green mana when tapped for mana.
+2: Until end of turn, green creatures you control are +2/+2, gain hexproof and have, "Tap this creature: Gain 2 Life."
-7: Create the emblem: Elves you control gain "Tap this creature: Gain 3 Life, or prevent up to 3 damage from one source, or counter target spell."