Dionne, Dancing Blade

Haste, double strike
When Dionne, Dancing Blade enters the battlefield, if it was evoked, deal 3 damage to
target creature. If X is 4 or higher, instead deal 3 damage to each creature your opponents control.
Evoke {x}{r/w} (You may cast this spell for its evoke
cost. If you do, it's sacrificed when it enters the battlefield.)