The Ox of Agonas

When Ox of Agonas enters the battlefield,
discard your hand, then draw three cards.
Escape—{r}{r}, Exile eight other cards
from your graveyard. (You may cast this
card from your graveyard for its escape cost)
Ox of Agonas escapes with a +1/+1 counter on it.
"What do you have there? Is it rare? Is it marketable?
Let me see it!"