Necrozma, Sun's Destroyer

Flying, Trample
When Necrozma enters the battlefield, shuffle all tapped creatures into their owner's libraries.
When Necrozma becomes blocked by one or more creatures, it gains +3/+0 if Necrozma has lower power than the combined toughnesses of all creatures blocking it, and +0/+3 if it has lower toughness than the combined power of all creatures blocking it.