The purpose of this deck is to use the new minion, Scarlet Webweaver, to reduce the cost of Gahz'rilla or Tundra Rhino for an OTK while using spells to keep your enemies at bay. Here's the combo:

1. Reduce Gahz or Rhino

2. Play Gahz and Rhino (7 mana total) + three of the one mana triggers on Gahz

3. Run Gahz into face

This deck admittedly runs into issues with taunts. If you can make do with a 24 damage lethal, you can add in Hunter's Mark on a taunt and ram it with your Rhino provided its damage is below 5. Alternatively, if you can use one Webweaver on Gahz and the other on a rhino, you'll have 8 mana left to work with, allowing you to remove things in the way.

Master's Call and Tracking let you get to your combo pieces consistently so as long as you can survive the initial onslaught, you should be able to pull off the combo fairly consistently. The one thing you have to make sure of is that you don't lose Gahz in Tracking or both copies of Rhino/Webweaver. With careful planning, that shouldn't be an issue.