It's far too one-dimensional to play, and even when it's in full flow, each sacrifice or life gain just sets off a sequence of events that you need to resolve over and over again, but many aren't all that interesting to deal with
The final list wont look exactly like MTGOs typical Vintage Cube lists either, as those frequently tend to experiment with newer cards or strategies Spain even stated explicitly in an article last year that the MTGO cube was about curating an engaging play experience, not a card museum. He says this cube, however, actually is intended to be more of a mix of both
And its only attack, Aura Burn , for two dark energies and one colorless, does 190 damage, but also 30 damage to itself
While I know that most planewalkers die from going to zero loyalty, there are occasions where they just outright get killed (see also Lethal Scheme)
The Reprint Set for the One Piece TCG is here
If you have all of this put together, you can cast infinite copies of Dramatic Reversal