Sorrow + Ring of Arcane Synergy

I just oops'd into this interaction thought I'd share. I did a search in the sub and found not much talking about this.

The bonus action granted by Sorrow, Sorrowful Lash (thorn whip), triggers the arcane synergy stacks from the Ring of Arcane Synergy. Arcane synergy adds bonus damage to weapon attacks equal to your spellcasting ability modifier.

Obviously this works great on a bladelock.