Quote from kanoyugoro »Haven't seen it mentioned you, but why not an ad nauseam style combo with Madcap Experiment ? Angel's Grace + Madcap Experiment into Blightsteel Colossus and then Mass Hysteria or Hanweir Battlements to give it haste?
Upsides from ad nauseam: doesn't kill you if you have to pass turn (you're at one life), theoretically faster using rituals, doesn't fold to getting the win con discarded (blight steel shuffles in)
Downsides: creature reliant, can't use artifact ramp, sorcery speed
Edit: and your backup plan for this is through the breach or discarding blight steel to get it back in your deck.