But this enchantment-based ramp it snowballs very quickly
How about the following: Adaptive Automaton, Belbe's Portal, Bloodline Pretender, Brass Herald, Cover of Darkness, Crippling Fear, Door of Destinies, Haunting Voyage, Herald's Horn, Icon of Ancestry, Kindred Dominance, Metallic Mimic, Mirror of the Forebears, Obelisk of Urd, Pact of the Serpent, Raise the Draugr, Return from Extinction, Species Specialist, and Urza's Incubator
This smaller build needs unique accessories
Single card introduction Single card introduction First introduce the four level 4 Exosister, all of which have effects in common: Once per turn
Its probably a bit too clunky for that, mind you
These are both valuable tools