Dio and The World

Flash
You may activate loyalty abilities of Dio and The World on any player’s turn any time you could cast an instant.
Put 5 loyalty (use counters) on Dio.
0: Dio becomes a 7/5 Vampire creature with indestructible, vigilance and "Whenever this creature deals combat damage to a player put a number of loyalty counters on Dio equal to the damage dealt rounded down."
-4: Dio deals 2 damage to each player. End the turn.
-12 Destroy all permanents each opponent controls.

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