By the designer of the classic card game, Race for the Galaxy. Res Arcana has a familiar theme. You control a mage collecting five different magical essences with which to play out various cards. Sounds like something you've heard of before, don't fret! Res Arcana has accessible rules, deep strategy, and a fairly quick play time. All around a really elegant design.
Res Arcana has a great mix of drafting, resource racing, and engine building. This will appeal to MTG players, but I could also see it really appealing to somebody who loves a game like Splendor but is ready for a little more complexity or a fan of Terraforming Mars who would prefer a quicker game. Coming back to drafting, the feel is a lot more along the lines of drafting a cohesive collection of cards like in a Magic draft deck only with a more accessible and smaller group of cards.