[Witchwood] Elemental Shaman

Tempo elemental synergy shaman. Crossed with an overload synergy by the unbound elemental, which might allow some strong tempo plays with the new zap! spell.

Wax elemental is here to take some early buffs (earthen might, master swordsmith, flametongue), to activate elemental synergies, block opponent's value trades in mid game, and/or put a resilient and buffable token on the board if else.