Munch-Munch Mutation -Two Legends- [OP-08]

Product Details:

Card No: OP08-019
Rarity: UC
Color: Red
Card Type: Event
Cost: 3
Power: -
Counter: -
Attribute: -
Type: Drum Kingdom
Card Set: -Two Legends- [OP-08]

Effect:
[Main]/[Counter] Give up to 1 of your opponent's Characters −3000 power during this turn. Then, up to 1 of your Characters gains +3000 power during this turn.

Trigger
[Trigger] K.O. up to 1 of your opponent's Characters with 5000 power or less.

Card Questions/Ruling:

• Can I use this [Main]/[Counter] effect to give one of my Characters +3000 power even if my opponent has no Characters on their field?
  Yes, you can.