Story event decks are unbalanced (again)
Dinos - as usual the aggro deck has no tools to win unless they draw the perfect aggro hand combination of dorks plus mythic bomb dinosaurs. Also you will also lose the mirror if you're on the draw, so you might as well just concede immediately if this is the case.
Gnomes - just completely busted since they play token blockers which stop the aggro decks early and then wipe the board with artifacts that then transform into flying attackers, or produce 12/12 tokens... Ridiculously overpowered and flavour fail since I don't think they're meant to be beating up on the dinosaurs, but then who knows.
The rest - haven't yet played against them because I'm yet to see anyone play them and the experience was so far so poor that I can't be bothered to play more matches today.
Also you removed the 'at the end of the event, all players will receive their rewards regardless of their completion' thing. Why?? This just makes it a miserable experience of grinding unfun matches for that singular card style you want. Just let us spend 2500 gold and be done if we want, it's more healthy.
I am yet to ever play a single 'story event' gameplay that is not unbalanced. I really wish you would put more time into testing the head-to-head matchups of these decks. Very rarely you get one or two matchups that are good but the rest are usually imbalanced and unfun.