This deck was inspired by a post on r/aieternal that I recommend checking out: www.reddit.com/r/AIEternal/comments/cwtis8/how_to_improve_winrate_of_any_player_that_has_a/
Like many even decks we are a tempo strategy centered around bouncing our units back to hand for additional summon triggers. Remember that bouncing Hojan Crownbreaker both triggers and resets renown.
Not saying gnash is a bad card but for your deck specifically it's only use is a 6/6 anti flier while your deck with 11 teleports gains far more from mystic/caiphus that have better synergy with your deck specifically.