King -Two Legends- [OP-08]

Product Details:

Card No: OP08-060
Rarity: R
Color: Purple
Card Type: Character
Cost: 7
Power: 8000
Counter: 
Attribute: Special
Type: Animal Kingdom Pirates
Card Set: -Two Legends- [OP-08]

Effect:
[On Play] DON!! −1 (You may return the specified number of DON!! cards from your field to your DON!! deck.): If your opponent has 5 or more DON!! cards on their field, this Character gains [Rush] during this turn.
(This card can attack on the turn in which it is played.)

Card Questions/Ruling:

• If this Character gains [Rush] from this [On Play] effect due to my opponent having 5 or more DON!! cards on their field, and the number of DON!! cards on my opponent's field subsequently drops to 4 or less, will this Character still be able to attack on that turn?
  Yes, it will.