Sanran Sanran no Mi/Utakata

Utakata
Utakata (泡沫, Bubble) is a powerful technique created by Tosen, using another other Technique Santōka Tosen would produce high amounts of stomach acid and then release them from his body, with his control over them Tosen would change the form of the acid into big bubbles and then he would compress them with his ability, after compressing it he would harden them with Busoshoku Haki to keep them in that compressed state.

After doing this Tosen would surround his enemies with these bubbles at and then remotly decrease the magnitutde of Busoshoku Haki applied to them causing the bubbles to explode, the explosions are very powerful because of the intense compression of the air inside the bubbles, but not just that these bubbles are made of acid meaning that acid will be shot in all directions when the explosions happen making it that much more dangerous.