Massive Damage

If you take over half of your maximum HP (including any temporary hit points at the time) in a single attack, you must make a Constitution Saving Throw with a DC of 15. On a success, you continue fighting as normal. On a fail, roll a d4, suffering a consequence as detailed on the chart below.
d4	Consequence
1 	You become dazed, and are unable to take reactions until the end of your attackers next turn.
2 	Your injury causes a jolt of pain, giving you disadvantage on your next attack.
3 	The shock from the injury causes you to release your weapon or shield (your choice). You may spend a bonus action to retrieve it, as the pain warrants greater effort even for a simple task.
4 	Your injury causes you to bleed profusely; take an additional d6 damage at the start of your next 2 turns, for a total of 2d6 damage. If you are healed during this time, the bleeding ends early.