Mulligans
General Mulligans
Fishy Flyer is surprisingly good, 8 mana for two 4/3 rush attackers keeps my damage output consistent.
Keep control of the board until you can abuse Zeph, Kronx, or Dragonqueen by returning them to your hand with wagglepick or shadowstep. If you can’t draw 1 of the three when you need to, use all the draw mechanics or secret passage. Just maintain board control as much as you can, the highlandey-ness of it usually presents solutions organically.