EDH Version of Modern Harden Scales - General help newish to deckbuilding

{"ops":[{"insert":"Hello,\nThe last deck I made was a Lonis Clue Combo deck. I absolutely loved it, but it was very limited and couldn't support itself through most games. Still loving combo/'math' decks, I wanted to make a Reyhan counter deck based on Harden Scales from the Modern format. Looked up some other people's listings and saw some really cool 'payoff' cards that got me even more excited. This listing is an adapted version that im currently tinkering with. Removed a lot of cards and replaced them with ones that I enjoyed or already own. My goal is to create an engine where I can stay in the game even if I don't win, I just enjoy stacking counters lol. Any help from which cards to cut or fixing mana curve would be greatly appreciated!\nhttps://archidekt.com/decks/20936496/harden_scales_reyhan_silas\n\nEdit: Would like to clarify that im not trying to make a combo deck that focuses on one specific combo. Rather to create an engine that can combo in multiple ways, and keep creatures/counters in play.\n"}]}