Chain Restrained Viper

Defender, Deathtouch
{2}{r}{r}{g}{g}: Monstrosity 2 (If this creature isn't
monstrous, put two +1/+1 counters on it and it
becomes monstrous.)
{r/g}, {ut}: Remove two +1/+1 counters from Chain
Restrained Viper, it loses monstrous.
As long as Chain Restrained Viper is monstrous,
it has double strike and can attack as though it
didn't have defender.