For some reason I am obsessed with creating a deck with Sharuum the Hegemon, the ultimate goal being to infinite combo Sharuum with another copy of itself combined with an enter the battlefield effect like Ayara, First of Locthwain to win the game. (This combo would be a lot easier in Legacy, but my playgroup does Modern).
I have tried a lot of things but it all seems too slow and too unreliable. A current possible list of what I was looking at can be found here, though I have been through a lot of ideas. There is also a lot of stuff on the maybe board which may be useful.
I would love any suggestions of how to pull this off
Mayael is this even legal in modern? I'd suggest cutting all the enters play abilities that don't win the game. Once you go off then you should win. If not the combo really isn't worth doing IMO. I'd cut all the cute stuff out and focus on doing that thing first. Once you have that optimized then I'd build the rest of the deck.
Best answer I can give you is what one card wins if you have the combo of looping the two legends? If it's possible to be a land then that's even better as it doesn't take up a spell slot. If not then you have basically a three card combo deck that needs two identical cards to be effective. Not good.
If you can put everything into play at one time then I'd maybe suggest a card that makes it hard or impossible for the opponent to play spells that turn. Can be the knight from MH1 or defense grid or Teferi the 3 drop. You'll need a few of these to prevent them from making a mess of the situation.
Just remember you are playing a slow 3 card combo deck in a focused format. Where 1 card combo decks exist or you can be killed on turn 3. Build accordingly or switch to something better.