Counter

When a creature within range makes a melee or ranged attack (including spell attacks), you can make a Saving throw of your spell casting ability, DC is 5 + half the amount of damage you would take. On a success, you take half damage and the attacker takes the other half of the same damage type (if their attack would deal two different types, you choose how much of each you take and how much of each you have the attacker take). On a failure, you take full damage anyways but can cancel out one status effect it would give you (if applicable).

You can also use this as a reaction against attacks from further than 10 feet away, but the attacker does not take damage if they are further than 10 feet away.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the DC to take half damage decreases by 5 per each spell slo above 1st. Additionally, when you cast this spell using a slot of 5th level or higher, you instead take no damage and the attacker takes the full damage on a successful save.