Possum Battlesphere

When Possum Battlesphere enters the battlefield,
create four 1/1 green Possum creature tokens.

Whenever Possum Battlesphere attacks, you may
tap X untapped Possum you control. If you do,
Possum Battlesphere gets +X/+0 until end of turn
and deals X damage to the player or planeswalker
it's attacking.

"The collective noun for a group of possums is "passel."
Let that comfort you in your final moments."