Sacrifices extra secret synergy for the power and consistency of Master's Call. x2 Pressure Plate for conjurer mage, x2 Rat Trap for aggro/tokens/rogue. It’s possible Rat Trap does a good enough job vs. aggro that Explosive Trap isn’t needed. Maybe you throw in a second Unleash the Hounds instead to make that win condition live more often. Or maybe even a single Timber Wolf for other Tundra Rhino finishing shenanigans.
Vicious Scalehide + Dire Frenzy gives you sustain as usual. Dire Frenzy can also lead to lethal setups on Unleash the Hounds tokens with Tundra Rhino.
Another cute finisher is using Scarlet Webweaver to put Tundra Rhino to 0 mana so you can play it the same turn as Zul'jin. Summon a huge board of 5/5s with charge. That combo that uses a lot of one-ofs, but Tracking + Master's Call + Subject 9 mean these sorts of things are going to happen pretty often anyway.
It’s odd for a beast hunter deck to not play Kill Command, but we have so much late game and potential burst that it doesn’t really seem necessary and we don’t have the slots. However, if Deadly Shot weren’t so important for the conjurer mage match up, we might slot in a couple Kill Commands. Hard to say for sure, though; Deadly Shot is incredibly good with Zul'jin.
Nice deck…I will try it