Invincible!!!
When you are versing the Vegnagun with three nodes in the battle make sure you have a person with a long range job (Gunner is the best one) and take out all of the nodes.
Once you have done so defeat Vegnagun and at the end of the battle you will receive three Hero Drinks these will make one character immune to HP and MP damage, all status effects and basically everything else in the game!.
You also get another one of of Shuyin I think you have to steal it off of him so make sure someone in your party has learned Sticky Fingers or Master Thief, Sticky Fingers always steals one item and Master Thief always steals one rare item.
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