Choatic Spark

You gain the following benefits.

Magic Absorption: Once per turn, you take damage from a spell or magical effect, you reduce the total damage taken by [roll]1d4[/roll]. You can´t use this benefit if you have the Incapacicated condition.

Chaotic Spellfire. After a long rest, you have to roll a [roll]1d8[/roll] and gain the knowledge to cast that cantrip until the end of your next long rest. If you already posses the knowledge to cast that cantrip, you may roll again. Additonally, you may roll [roll]1d8[/roll]as a Bonus Action a number of times equal to your Proficiency Bonus to cast the associated cantrip, and you regain all expended uses when you finish a Long Rest. 

Note: Maybe to simplify it, you only roll once which spell you get and then have that spell until your next long rest, even though thematically it would be cooler if it was the way described.

Click the cantrip name to cast it. Ensure your character has access to these spells.