Human: Male Quatro Cerberus Back S-Class Mage Team Quatro Cerberus Quatro Cerberus Guild Palm Magic
Bacchus (バッカス Bakkasu) is an S-Class Mage of the Quatro Cerberus Guild.
While on jobs for their respective guilds in the past, Bacchus and Fairy Tail's S-Class Mage Erza Scarlet have fought many times. However, neither ever defeated the other, and so their score has never been settled.
(Source: Fairy Tail Wikia)