Reducing the cost on this is super doable even outside of graveyard decks, and it's a pretty scary threat when it comes down for 6 or so mana
BUT there's a human in the background screaming
Executive producers from Square Enix were heavily involved with the design process, and artists from across Final Fantasy s lifespan were invited in to create borderless skinned reprint cards and alternate art for new cards
There were no good answers to a Frenetic Efreet, only answers that worked half the time, so as long as you weren't far enough behind that he was ignorable the Efreet was always effective
It looks like the design team anticipated this cards popularity because Bloodthirsty Conquerer got the Showcase treatment
But hey, the new cards are awesome, and the reprint values great, so I cant hate too much