I hope it’s not a constructed format, because I found a three-card game-winning combo pretty quickly: Sanguine Bond plus Exquisite Blood plus any way to gain life, like Honden of Cleansing Fire or the last mode of Glorious Sunrise. Just put one of each of those cards plus 57 lands in a deck and you can have your combo assembled by turn 4.
Yeah, but they can go up to four copies of Yotian Frontliner. It’s not as good, but I don’t think it’s bad enough to sink the deck. And that’s assuming that neither color gets an artifact-producing one-drop in the next set. Or lands that make it viable to go into a third color for Spyglass Siren.