Expandable 1v1 board game played on a board. Strategy comes from card positioning/movement and hand/deck management. Some luck involved with dice rolls used to determine most attacks.
Objective is to kill your opponent's "summoner" unit. 16 factions currently (6 come in the master set which is the best value and includes the board). Unique units for each faction with differing costs, health, attack values, and abilities. (Good for those into asymmetrical gameplay). Also different events for each faction that can do different things like allow free summoning of units, take magic from opponents, add/enhance abilities, etc.
Limited deck building (no randomness in what the decks you buy will contain) through the reinforcement packs they sell that add about 10 units (plus multiple copies for common units) for 2 factions each. Set size on decks.
I haven't gotten into the reinforcement packs yet, and only have half the factions (8) so far but that's already a lot of potential match ups. They seem to be done making new factions for now but will be adding new summoners (with events) in the near future to change up the old decks.
Turn based gameplay with separate phases for summoning new units, moving, and attacking. Build magic to summon more units or play abilities by discarding cards from your hand or destroying units.
Game tends to move pretty quickly, especially once you've learned the unit abilities. And while there is luck involved through the dice rolls they don't feel like a major reason for winning or losing. A major reason I like it is because each faction feels fairly distinct from one another. Mountain Vargath may be more a straightforward, charge ahead faction, but the Benders rely on manipulating enemy position, or the Swamp Orcs use their unique vine walls to trap their opponents or shield their own units.
All the cards are available to look at to give you an idea of what the different abilities are.
Some factions are more straightforward (Phoenix Elves, Mountain Vargath) some are definitely a little more tricky (Benders, Cloaks)
PS:
These lists should be a good starting point for finding new games worth playing. With a 2-player category as well.