Basil, commonly known as simply "Basil", is Iemitsu's young disciple and subordinate. He possesses the blue, rain attribute flame, and has the ability to go into Hyper Dying Will Mode when he consumes special pills made by Iemitsu. Due to being strictly trained since early childhood, he is a very talented fighter. Unbeknownst to Basil, in order for Iemistu to safely deliver the real halves of the Vongola rings to Japan, he was sent to deliver the fake Vongola Rings to Tsuna. During this, he encounters Superbia Squalo, and is subsequently beat, though despite being used as a decoy, he remains extremely loyal to Iemitsu. He later helps train Tsuna in order to help the latter control the Dying Will Flame. Basil also has a habit of speaking in an archaic manner; usually replacing 'you', 'the', and 'I', with 'thou', 'thee', and 'thy', and refers to Tsuna and the guardians with the suffix '-dono'. He is voiced by Yuka Terasaki in the anime.
an extended description!