After a creature you control dies, her transformation threatens a mini-sweeper that clears small boards, so token and creature-swarm decks cant overextend freely
While Wizards of the Coast did an admirable job of restraining the power of stickers, this particular card is subtly extremely powerful in the right deck
One special thing to note is that for the first time ever, the Ogerpon Illustration Rare SV Black Star Promo that comes in the box has a glittery holofoil pattern we have never seen before
For Ruby, for instance, each theme deck contained a random regular holo from the set
This ensures that the power creep of the newer sets doesn't create imbalance and the competitive environment feels healthy and refreshed
It can even investigate again by exiling creatures from your graveyard, giving you a backup plan when the board gets messy