The card battler Vambrace: Dungeon Monarch has been released:

Vambrace: Dungeon Monarch - Official Release Trailer

Deck-building, dungeon defense, and tactical gameplay combine in Dungeon Monarch! Recruit warriors and wizards, buff your heroes, and thrash your foes - summon your dungeon monarch to punish interlopers and defeat enemies to increase your dark powers!

The card-battler Vambrace: Dungeon Monarch will be released on May 8:

Vambrace: Dungeon Monarch

Deck-building, dungeon defense, and tactical gameplay combine in Dungeon Monarch! Recruit warriors and wizards, buff your heroes, and thrash your foes - summon your dungeon monarch to punish interlopers and defeat enemies to increase your dark powers!

Thanks Couchpotato!