Brother of Gandhari, married with Arshi, their sons werde Vrika and Uluka.
Master of the dice game – his father’s soul had gone into his dice and they rolled where Shakuni wanted it.
For Duryodhana (Kaurava) he played the dice game with Yudhishthira (Pandava), in which the latter lost everything and had to go into exile with his brothers for 13 years.
Read about Shakuni here
http://utkarshspeak.blogspot.com/2011/07/shakuni.html