The 'Vanish/Doom' exploit is a classic Final Fantasy VI trick. Casting 'Vanish' on an enemy makes them immune to physical attacks but vulnerable to instant death spells. Follow up with 'Doom' or 'X-Zone' to instantly defeat many bosses and tough enemies. While considered an exploit, it can be a lifesaver in challenging situations, especially against enemies with high physical defense. Be aware that some bosses are immune to instant death, so it's not universally applicable.
