Embo is great, but I find it easy enough using Boba instead. Like some others have said, use Jabba's basic first turn to protect Krrsantan. If he dies, use Skiff's turn swap on Jabba and he's back up and running again, ready to taunt on his next turn. It can be a fairly long fight, but I usually end up with multiple Ultimate attacks. Focus on Range troopers and get your contract completed. This will trivialise the fight as every wave will start with all your toons having damage immunity. Wave 3 just kill the death troopers quickly before it wears off.