"Grab your opponent to inflict damage. Opponents take no damage if they are not grabbed. Grabs are unblockable."
Blend (なじむぞ - Najimu zo) is one of the abilities exclusive to Dio in Jump Force.
Overview
Dio rushes forward to dig his right hand into their middle, draining their blood.
Origins
Although not referencing a specific instance of this happening, this ability incorporates an ability of Dio and other vampires in the Jojo's Bizarre Adventure series. Instead of drinking blood using their fangs, they instead stab their fingers into the victim's neck. However in this ability, Dio instead stabs said fingers into a vague location in the opponent's side, likely to avoid wasting development time on creating unique animations for this move being performed on every character.
Blend in action