Bloodthirsty

You have no mercy for your enemies, and your blood hunger gives you strength in battle. You gain the following benefits:

• On your turn, when you score a critical hit with an attack or kill a creature with it, you can make one weapon attack or one spell attack with a cantrip as a bonus action.
• Whenever an enemy creature you can see (within 15 ft of you) is killed, you go into a bloody fervor gaining temporary hit points equal to 1d4+your Charisma modifier, for 1 minute.