It's a realtime version of Magic the Gathering and it's quite good. The manacrystals appear in regular intervals and you run over them pick them up. When you got enough mana you can cast your spells /cards. Mana regen automatically and the more you got, the faster you get it back.

Each color only got 14 spells and you can choose 10. You can also have 2 colors and select one primary and one secondary color.

The singleplayer experience is long and exciting. Around 50 main missions in the quest where you learn each spell for every color. The last chapter, part 6 is where you make your own spellbook and face off against the most powerful combos the developers have done (I haven't even defeated the first one!)

There's also arcade mode where each color got duelists (basic, advanced and legendary) where the more advanced duelists got more spells to chooose from. Almost done with that.

Gamespot reviewed it http://www.gamespot.com/pc/strategy/mtgbattlegrounds/review.html?om_act=convert&om_clk=gssummary&tag=summary;read-review

http://www.youtube.com/results?search_type=search_playlists&search_query=Magic+Battlegrounds&uni=1 <-- Youtube videos.

Found a small glitch that even if you update to v.1.4 you see v.1.1 in the upperleft corner.

So if you like games such as Etherlords then you'll like this as well.