Evolutions has 113 cards in total (108 main set cards plus 5 Secret Rares)
When I dug into the decklist, that gem count came from a rate of at least 40 gems per mythic, 20 gems per rare, 10 gems per uncommon, and about 5 gems per common
This is on top of the deck being able to access a number of powerful generic XYZ, Link and Synchro monsters on top of Adamancipator Synchros, offering consistency and search capabilities in Gallant Granite and powerful negation in Apollousa, Bow of the Goddess
Whichever player has more life points at the end of the fourth turn wins
The weird part is how characters still read card effects despite the lack of text
With demand running so high that supply of booster boxes and packs just can't keep up, it's no wonder why the hobby seems to be getting more and more expensive