You don't need Thaurissan and it honestly feels clunky, you might not be able to ever play it and it'll clog your hand.
For the simpliest combo you need 3 cards: Elise, Kun and Banker and it's a 2 turn set up. First turn you play Elise, which means you have 2x Kuns and 2xBankers and then you banker the Elise. Next turn you draw Elise and from there you go infinite. You play Kun, then Elise and then Banker the Elise every turn. You get 10 armor, a 7/7, 5/5 and a 2/2 and avoid the fatigue ticks every turn.
The other more efficient combo is with floop in hand as well as the previously stated cards, the first turn set up is the same and then you go Kun into floop into elise into banker. On this one you get 20 armor, a 7/7, 3/4, 5/5. 2/2 every turn and also avoid fatigue.
As you can see you don't need the Thaurissan to enable any combo at all and he'll actually clog your hand sometimes as you can't afford to play him. I cut him on my list and kept the Phaoris in my list, he's a extra threat and it works nicely with the deck. Also don't run overflow, that's too much draw, it often sits in your hand or it mills a couple cards which isn't good. Cut Pounce as well and then run double Worthy expedition, it's definitely a better card. You could also run Cenarius if you have it.