Stalwart Defence

Once per turn you may use a bonus action to steady your footing and brace yourself for attack.

You must have a shield equipped to use this feat

Your movement speed is reduced to 0 and your AC is increased by your Dex modifier until the start of your next turn or your guard is broken.

All attacks made against you are at advantage.

AC buff is only effective in the direction the shield is facing and 45 degrees to the left and right, attacks made directly left, right or anywhere from behind ignore the increased AC but will still cause your guard to break and stun you until the end of your next turn if they hit.

If an attack roll made against you would have hit you before taking the defensive stance you slide back 5ft times the number of points the attacker rolled above your normal AC.

If you slide into an object or creature your guard is broken, you are knocked prone and stunned until the end of your next turn, all attacks made against you during this time are at advantage.

If you slide off a ledge you must make a dexterity saving throw equivilent to your base AC prior to entering Stalwart Defence to avoid being pushed over the edge.

On a successful save you are left hanging from the edge.

If an attack roll made against you exceeds your new AC, your guard is broken, you and stunned until the end of your next turn, all attacks made against you during this time are at advantage.