Udyr, the Spirit Walker

Scaling
{r}{r}: Udyr gains double strike.
{r}{g}: Udyr gets +1/+0 for each of his AD.
{g}{g}: Udyr gets +0/+1 for each level counter on
him and gains hexproof.
Activate abilities of Udyr, the Spirit Walker only
if none of those abilities have been activated this
turn.
"Their fear is wise."