Chance

Indestructible.
X must be at least 1.
When Chance enters the battlefield, roll X dices,
then:
- For each 1, sacrifice a permanent.
- For each 20, create a token that is a copy of a
non-legendary creature you control.
Chance's Power is equal to the result of the first
dice.
Chance's Toughness is equal to the result of the
last dice.