Squalo

Squalo (スクアーロ) is a member of Diavolo's Guard Squard, an antagonist from Part V: Vento Aureo. Combining his stand ability with his partner Tiziano's, he is one-half of a tag-team sent out to kill Bruno Buccellati and his team on direct orders from the boss.

Synopsis
Squalo first uses his stand to rip out Narancia Ghirga's tongue, which also doubles as a means for him to plant Tiziano's stand on his tongue as a means to mislead Buccellati's group and kill them one by one.

However, Narancia manages to isolate his stand and injure him sufficiently, forcing his breathing to increase and causing the large amount of carbon dioxide he expels to become visible on Aerosmith's radar. With no body of water for him to transfer his stand, Squalo is forced to watch as Tiziano sacrifices himself to block Narancia's bullets, spilling his blood and enabling him to use his stand to attack Narancia. Squalo engages Narancia in a standoff, but ultimately loses and dies from Aerosmith's bullets.