Zero's Sacrifice

As an additional cost to cast this spell, sacrifice a creature. Choose two separate modes:
• Prevent all combat damage that would be
dealt this turn by permanents you do not control.
• Destroy target nonlegendary permanent.
• Deal X damage to any target, where X is
the power of the sacrificed creature.
{bull} Roll a 6-sided die. If you roll a 6, this spell
now has Storm.