Staeve, Queen's Guard

Defender, indestructible.
Other creatures you control can block an
additional creature each turn.
{8} Monstrosity 8. (If this creature isn't
monstrous, put eight +1/+1 counters on it and
becomes monstrous.)
As long as Steave, Queen's Guard is monstrous,
it has First Strike and can attack as though it
doesn't have defender.