Viper/Mammon

Viper (バイパー, Baipà) is his real name as the Guardian of the Pacifier of the Mist. Also one of the officers of the Varia, an independent assassination squad of the Vongola Family, known as Mammon (精子•マーモン, Espā Māmon). Famed in Varia as the best spell caster, Viper has the ability to create illusions, as well as the ability to determine the location of any person, sneezing into a piece of paper (they carry a roll of paper with them); the saliva or mucus that remains on the paper shows a map leading to the right person. With the exception of the Trial of the Arcobaleno, Viper only works for money and therefore represents one of the seven sins - greed. He also has a dark green frog named Fantasma, which lies on his head. By transforming into a yellow Ouroboros (a coiled snake biting its tail) into a "halo" above him, Phantasma allows Viper to fly during battle; There are possible errors in the text, as English is not my strong point and I use neural network translation in particular DeepL.