Based on Runningmonkeys' Two Player Hour/Amonkhet Cube.
ArchetypesEnablers are creatures with Embalm or Eternalize. In terms of payoffs we have cards that boost creature tokens (because embalmed/eternalized creatures are tokens) and cards that fill the graveyard.
Enablers are zombies. Also creatures with Embalm or Eternalize can become zombies later on and support the archetype.
Enablers are creatures with Exert abilities. Untap abilities synergize well with them.
Enablers are cards with cycling or discard effects.
In AKH/HOU there exist only five rares with Eternalize. With their rather similar mana and eternalize costs, I'll call them a cycle.
Trials & CartouchesThe singleton rule is broken for these, since they're so essential for desert synergies and as enablers for the cycling archetype.