Reform the World

Mix {3} (As you cast this spell, you may pay {3} any
number of times. For each time the Mix cost was paid,
add one Result counter to this spell.)
If there are one or more Result counters on this
spell, it is an enchantment spell.
Permanents with Result counters on them get
-2/-2. If the life cost was paid, instead
permanents with Result counters on them are
creatures and have base power and toughness 4/4.
As you cast Reform the World, destroy all
creatures without Result counters on them.