Though Colorless could technically be seen to be a Basic Energy and it is, after all, a Pokemon type in and of itself (representing the video games Normal, Flying and Dragon type Pokemon) there are only Special Colorless Energy cards, not Basic
If OP-16 sealed supply is comfortable, buyers may wait longer
If another spell is played before damage resolves, the Togglodyte will turn on and deal its damage
This means that it gets counters equal to what you pay into X in the mana cost
*You can check the event information setting the Game title as "ONE PIECE CARD GAME (Japanese)"
Whether it's killing a bomb of a creature definitively and turning the tide of the game, or comboing out with Jaws of DefeatJaws of Defeat to take a player out, Overkill will seldom be unimpactful in a game of Commander