I found this useful, after u get 4 character u use all their damage debuff, warrior (belittle), rogue (pepperbomb or powderbomb), mage (subzero), stack all these up in one turn, u will get and invunarable status (zero damage receive from enemies) for maximum 3 turns due to damage reduction. This is useful for geting through tough enemy or enemy is stun and frozen. Hope is helpful