Before I offer my decklist, which I played at the StarCityGames.com Open in Baltimore last weekend, Id like to offer two decks that came before and inspired the version Im currently recommending
A 5/5 Human Knight with vigilance and menace for six mana, whenever an equipped creature under your control attacks, you can draw a card for the low cost of losing one life, potentially allowing several additional cards to be drawn in a single turn
The Sunspine Lynx field guide card from Bloomburrow
This design was inspired by one of our early takes on Sagas, cards that Richard Garfield designed which had board game-like tracks on them with squares having icons representing specific effects
Spike Feeder comes into play with two +1/+1 counters on it, and you can remove one of them to gain two life
Having a restriction of one of each for any non-basic land makes Mishra, Artificer Prodigy pretty much useless in Commander