When in its second form, the chain extends and the dagger shards separate, and arcs of electricity glide between each piece, holding the whip together. On a hit, you can choose to not deal damage and instead apply the grappled condition to a creature no more than one size larger than you. The target then makes a Strength (Athletics) or Dexterity (Acrobatics) check to escape the grapple as normal. It will be a roll off.