Ars Ferrum

You flourish the weapon used in the casting then make up to 6 melee spell attacks, on a hit a target takes 1d10 force damage. If at least 1 of those attacks hits, you may continue making melee spell attacks until you make 6 more attacks or an attack misses.

If you make at least 8 attacks with this spell you may make 1 additional attack, on a hit the target takes an additional 8d10 force damage.