I really like the game EAW Forces of Corruption so here is my idea of an IG-88 based on Empire at War
needs input on cost

IG-88, Destructive Mishap
HP-80
Def-19
Attack-11
Damage-20
SA
Droid
Unique
Double Attack
Twin Attack
BH+8
Radioactive Spray
Replaces Attacks, enemy within 6 squares takes
30 damage and all characters within 2 squares of target take 30 damage.
Biological Weapon
Replaces attacks, target living character and all characters adjacent
take 10 damage, save 11, if any character affected by this move adjacent to a non affected
living character, then that character is considered effected