Summoner
If you choose the Summoner variation for Quan Chi, you get to summon a Netherrealm Bat. As silly as that sounds, the Netherrealm Bat can actually prove to be quite useful in dealing chip damage to your opponent. The Bat will attack during Quan Chi’s combos and normal attacks, giving you a slight boost in damage output. The only drawback is that you’ll have to summon the Bat again after it disappears. As long as you’re not too close to your opponent, you should be able to summon the Bat quickly enough for another attack. The good thing about Quan Chi is that he has a number of moves that push his opponents back, giving you plenty of time to summon the Bat.
Skull: Down, Back, Triangle
Trance: Back, Forward, X
Sky Drop: Down, Back, Circle
Demon Spawn: Down, Back, X