Storm of Astral Blight

Flash
Enchant target player.
Storm of Astral Blight enters with {x} counters on it.
Enchanted players creatures are crystal artifact creatures with base power and toughness 0/1 and defender, and it loses all other abilities, card types,
and creature types.
At the end of enchanted players turn remove one counter from Storm of Astral Blight.
If Storm of Astral Blight has no counters on it, sacrifice it.