Old Gnawbone is a big dragon that can generate absurd amounts of mana, and this deck is so good at drawing cards that it could enable some truly heinous sequences where you cast multiple huge creatures in a turn, resulting in Eshki eliminating multiple opponents
I do tend to enjoy more dramatic foiling personally, but as an aesthetic on already very pleasantly laid-out cards, sometimes less is more
This is one way that Non-Active Players can cast creatures during their opponents turns
5 Galarian Zapdos V Alternate Art: Current market value of $69.28 as of this writing
At the cost of his own life, Zack Fair can move his counters and Equipment to another creature for one mana, which can be exploited via certain Equipment like Mithril Coat
I wouldn't call this bad design as such as you can play around the drawback, the card is pretty fair on average