Talia's Malicious Embrace

Lightning springs from your hands to deliver a shock to a creature within range. Make a melee spell attack against the target. You have advantage on the attack roll if the target is wearing armor made of metal. On a hit, the target takes 1d8 lightning damage, and is paralyzed until the start of its next turn. You can use your action deal an additional 1d8 lightning damage on your turn(provided you take no other action this turn.)

The spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).