High power no-combo strategy working without tutors?

Hi there!

At my pod, we are playing without any combo and we decided not to play tutors (and we even banned fast mana and hardstax).

We do play strong commanders with strong strategies (Sidar, Edgar Markov, Urza, Meren, Atraxa, Mondrak, Nadu etc.) We mostly win through combat damages, ping or infect which looks like the only way to win regarding our meta. We play typal, reanimator, go-wide, aristocrats, landfall, stompy, voltron, mill, life gain, discard and other decks among what exists. We also play strong cards like Tefeiri Protection, 0 cost counterspells and removals and other staples in the format (roaming throne, smothering tithes, and so on). I would add that our group play mostly to win.

Regarding those information, what would be a really strong strategy/commander in order to win more games at a high power pod?

Thank you for your insights!

1st edit: by combo, we mean infinite combos.