Arajin is a Tetris Battle Gaiden character. His name is the Japanese pronunciation of Alladin and appears to be a stylized Middle-Easterner equipped with flying carpet.
His Crystal Powers are:
Level 1: シーソー Shīsō (Seesaw)
Transfers the bottom two rows of your stack over to the opponent's
Level 2: シールド Shīrudo (Shield)
Protects against rows sent over to you by the opponent.
Level 3: ファックス Fakkusu (Fax)
Literally faxes your stack over to the opponent.
Level 4: リモコツ Rimokotsu (Remote Control)
Allows you to remotely control two of your opponent's tetrominos.