Momentarily hit rank 1 masters on release of Into Shadow (2018-10-03) with this.
It relies on the obvious synergy of
Horde Plunderer +
Tome of Repetition for value - killing two Varas with a single Vanquisher's Blade is the ideal outcome.
4x Horde Plunderer is absolutely vital so that you can actually use all of your spellcrafts. I'm not using four Chancellors because without tribute activators they're a liability early game.
Staff of Speed is very situational but occasionally makes the entire enemy hand unplayable.
See my version with Mystic Ascendant and no Auralian Merchant
here.
Jotun Hurler and Thunderstrike don't have any obvious synergy with the deck, are they being played primarily as cards that you can swap into the market? If so, did you try the Find the Way or Unstable Form?