Yodel, the Wax Drinker

Indestructible, Deathtouch, Mentor
{1}{b}: Target creature gets a +1/+1 counter then proliferate
{7}{g}{g}: Proliferate 7
{10}{b}{g}: Destroy all creature each opponent controls, creatures you control get 9 +1/+1 counters and gain Deathtouch and Trample