To be basic the Combo is 
1. Buff King Krush once, with either Scavenger's or Scrap Shot.
2. Duplicate him twice with Ramkhahen Wildtamer 
3. Pull out the 3 copies of Krush with Beastmaster Leoroxx
I'm not sure wether or not Hunting Party is a good include in the deck, but it may be worth it so that you don't have to only rely on the Rhamkahen Wildtamer. The positive thing about using Wildtamer is that you aren't in danger of losing too much tempo or being behind on board in the early game, which helps the deck survive for longer. May and or may not be a good idea but I think it's worth trying out for fun at least. 
Also, even if you don't buff Krush at all, which is rather unlikely, the combo is still a 24 damage combo, and with Hunter having a direct to face HP, I think it's enough to close out most games.