Just run an extra copy of Polymerization! Not really useful for thinning either. What if you draw Polymerization first, then this cards is a dead card in your deck.
That's LITERALLY the nature of YuGiOh though & all other card game's: It was hereby decreed that ye shall have DEAD CARDS. Even with the best preparations, Dead Cards shant go away~
you should run multiple polymerization then to keep this card's use, great for last gamble ritual decks that run 3 storm, 3 poly, 2 fusion sage's, 3 thunder dragon's etc.