I'd be remiss if I didn't recommend Puzzle Strike and Yomi:
http://www.sirlingames.com/collections/puzzle-strike
http://www.sirlingames.com/collections/yomi
Both are quite simple to learn compared to a lot of stuff out there, have tremendous competitive depth as well as being very well balanced, and they aren't a significant money sink. When you buy them, they come with everything you need to start playing (unless you don't buy the Yomi package with all of the decks). Puzzle Strike is coming out with a 3rd edition and expansion that doubles the number of playable characters in a few months so I'd probably hold off on that for a bit, but I'd definitely recommend Yomi right now. Being a competitive card game that doesn't rely on the business model of selling booster packs with random assortments of cards of varying rarity is a big plus from the consumer end.
http://www.sirlingames.com/collections/puzzle-strike
http://www.sirlingames.com/collections/yomi
Both are quite simple to learn compared to a lot of stuff out there, have tremendous competitive depth as well as being very well balanced, and they aren't a significant money sink. When you buy them, they come with everything you need to start playing (unless you don't buy the Yomi package with all of the decks). Puzzle Strike is coming out with a 3rd edition and expansion that doubles the number of playable characters in a few months so I'd probably hold off on that for a bit, but I'd definitely recommend Yomi right now. Being a competitive card game that doesn't rely on the business model of selling booster packs with random assortments of cards of varying rarity is a big plus from the consumer end.