Though, I'd argue Archfiend of the Dross has a slightly steeper upkeep cost
Team Magma's Groudon
It is notable that the rebound flicker happens at the beginning of your turn and this will make the creature you target unable to attack for the rest of the turn, however, creatures with good enter the battlefield effects, like Reflector Mage and Cloudblazer, won't leave you feeling too bad about it
The attack deals 30 damage times the number of Pineco and Forretress cards in play, potentially knocking out a powerful defending card in a single turn
If it does see play (which it may not, given the speed of the format today), it is likely to help boost some slightly slower decks and reinvigorate some that existed previously
Thankfully, I can use an in-game currency to buy specific cards rather than testing my luck with packs (the apps microtransactions feel very carefully designed to avoid any legal red flags), but wouldnt it be easier to compete if I just paid for Premium