Card: Shield Card

Using your internal Mana, You pull the Shield Card out of the magical deck and point it to a spot withing 30 feet around the caster , A shield with a lion head appears at the target spot before roaring, increasing the AC of all beings within 20 feet of it by 2. Uses 5 Card points.

Your max Card points are equal to your character level, and are fully restored on a long rest, but only restored by half of your max on a short rest.