Gartwath the Forest's Whisper

Gartwath the Forest's Whisper has hexproof and vigilance as longas you control a forest
{g}{g}{t}Gartwath the Forest's Whisper deals X
damage to any target where X is the
number of forests you control
{4}{g}{b}{t} creatures you control get +X/+X
until end of turn where X is the
number of forests you control