In every episode of my Eternal deck history video series I include a modern take on the historic archetype. Some of them will still be good, while others are in a much worse state thanks to nerfs or because they just received less support to keep up with powercreep compared to other decks.
This list for my second episode, Skycrag Yetis, is a bit of an outlier because it completely deviates from the historic aggressive version (for which I already made an up-dated list though). I think this is the better version right now. Contrary to the aggro version, it didn't get crippled by nerfs and instead got a lot of strong additions over the last few years, most importantly the center piece of the deck, Xultan Ambassador.
The deck has a lot of different synergy packages: 1) Mother of Skies + all the multifaction units help to survive against aggro, but also give you a lot of air presence in the midgame. She works especially well with Kenna (the Cloudsnakes can trigger her ultimate fast) and Nomnom (a bunch of 1/4's that deal extra damage to units). 2) Ambassador + all the heroes to draw extra cards. Depending on the matchup (how much removal do they have? How fast do how you have to be?) you can either run him out early and just draw cards while curving out or keep him for later to safely get some draws (with something like Ambassador + Chunk + bonded Pokpok on turn 6 to draw 2 cards and a Snowball). 3) Yeti tribal synergies. Wump and Masterwork make your board more threatening (and Wumps ability can help with Kenna's ultimate), Pokpok can be a cheap body + small removal and Jotun Birth Song is good card advantage + a nice buff (especially on something like Pokpok).
Adding all that together, I would give this deck a 7/10 (1 being completely unplayable, 10 being top tier). It is good enough to climb with and enjoyable to play because of the different synergy layers, which lead to a lot of variation and interesting decision making, but the deck is pretty fair compared to the top tier throne decks and has a hard time beating bigger midrange decks or specific combo decks and can also struggle against aggro if you draw the wrong half of the deck, especially if you have to go second.