MiniSteel

From BoardGameGeek:

MiniSteel is an ultra portable, quick-fix, battle royale strategy card game. Players begin with 10 HP Tokens and 2 Card Draw Tokens to enhance their hand when they choose to use them. The highest rolled die begins. With 6 cards in hand, the first player chooses to equip for battle, build up shields to defend for a future attack, heal, and/or attack an opponent, all opponents, or the whole table! After two actions, the turn moves to the player to the left until the last player standing wins the battle... unless someone has in hand the Revival Scepter. The same game is never played twice and epic comebacks feel so, so good! -description from the publisher