Adventures in the Forgotten Relams brought the excellent ramp of Sword of the Animist back below $10
Tymna the Weaver is an obvious candidate for a commander that can benefit from the evasion and the doubled triggered ability
Mathematically speaking, thats probably only gonna be like 15 spells by the time you get it out
Tomorrow, Azami's Familiar : This commander redefines card draw, turning any single draw into a pseudo-Impulse effect, where you look at the top three cards and pick one
There are several good Legacy decks that dont run any Reserved List cards at all, by the way
The idea is to play a lot of creatures that draw cards to smoothly build mana with Cryptolith Rite and then to either lock the opponent out with Eldrazi Displacer, or better yet, mirror the Ghostway / Eternal Witness combo, but with Eerie Interlude and Greenwarden of Murasa to protect all your creatures and keep reusing your Elvish Visionaries and Reflector Mages