Mulligans
Best old cards statistically + new synergies.
Probably best Shaman day 1 deck.
Some gimmicks:
Excavate package for Sir Finley, the Intrepid proven to be good at old meta by stats.
Sand Art Elemental or it’s mini + Doctor Holli'dae = MORE ORANGE FROGS
Also windfury can be good clear or finisher with Turn the Tides
Fairy Tale Forest tutor your strong cards
Hagatha the Fabled draw us strong board bombs Once Upon a Time... Pack the House Wish Upon a Star
Shudderblock are good for fast excavating, activating hagatha slimes or just for value.
Also it might work with Kalimos, Primal Lord 6 damage battlecry, since it’s inderect battlecry damage. It will be dealing 18 damage if it works.
It also curve nicely into full board of Shining Sentinel
Gameplay with similar deck at theorycraft stream: https://www.youtube.com/watch?v=f_qGELZInMY