Thromok polymorph brewing help

I'm brewing a Thromok deck focusing on polymorphing tokens into big token generators and then flinging a giant Thromok to kill people. I have most of the Gruul instants and sorceries that make tokens and polymorph them, but in most games I play, I either don't make a single token for half the game or don't draw any polymorph spells to use them. I added some card draw and the few tutors that Gruul has for non-creature spells (like Gamble), but it still feels clunky. Any help brewing would be appreciated! Decklist - [https://moxfield.com/decks/mRyulLogjUOx2ESMQyvvKQ](https://moxfield.com/decks/mRyulLogjUOx2ESMQyvvKQ)