Too creative
Eventhoug I spend way too long on the design of the cards, (not an artist) I like it. Card game and FPS, btw.

Hearthstone was the inspiration, so a lot of the design was taken from there. Red blood drop diamond, displays they enemy's health Blue diamond, displays enemy's strength, or the weapon's attack damage.
Movement, picking up cards, attacking works fine.
To do: AI, UI, Terrain, Menu
Wish me luck for the next days, currently 4:30 am, time for sleepzzz