Orbeetle Lost Origin Bug

Orbeetle's attack Mysterous Wave does 30 base damage plus 50 more for each energy attached to your opponent.

However it doesn't seem to use the 30 base damage and only takes the opponent energies for the damage calculation making it do 0 damage if the opponent has no energy attached instead of base 30. Base 30 also doesn't get included in damage calculation when the opponent does have energies attached.