Dragon Gear and Stardust
From Lunar Subterrane’s entrance, take the southern doorway onto the main route. Now that the Sage/WeaponEquippable by Edge. Power 55; Acc 90%; Strength +5, Agility −5, Vitality +5, Wisdom +5, Will −5. Reusable Item spell: Armor. branch is behind you; these B2 and B3 rooms lead toward the rest of the dungeon.
B2: FireLash and Dragon Shield
Use the eastern hidden passage and follow its loop to WeaponEquippable by Rydia (both forms). Power 50; Acc 65%; Strength +5, Agility +5, Vitality +5, Wisdom −5, Will −5. Attack element: Fire. Attacks may inflict Paralyze.. Keep Rydia’s casting rod for her normal role; the whip’s physical benefits come with a mental-stat penalty.
Continue around the northern route for the Equipment: ShieldsEquippable by Cecil (Paladin), Kain, Cid. Def 6; Eva +38%; Mag Def 3; Mag Eva 5%. Resists Fire, Lightning, Ice., then take the doorway near that chest to B3. Cecil and Kain can both use the shield. Compare it with their current gear, and keep the displaced shield until you can store it.
B3: Three More Dragon Pieces
Pass the stairs down for a moment and explore the hidden branch on the east. It contains Dragon helmet, body armor and gloves. Collect all three before descending.
These pieces offer Fire, Ice, and Lightning resistance. That is useful protection, but don’t assume wearing multiple Dragon pieces multiplies the same resistance. Spread useful gear between Cecil and Kain rather than automatically giving one character the entire matching outfit.
A practical starting arrangement is Dragon head/body/shield on Cecil while keeping ArmorEquippable by Cecil (Paladin), Kain, Edge, Rydia (adult), Cid, Yang. Def 10; Eva −10%; Mag Def 0; Mag Eva 0; Strength +10, Vitality +10. Protects against Mini. Compare the primary-stat benefit with better magic defense, elemental resistance or status protection, especially near the stat cap. in his arms slot, with Equipment: Hand armor and ringsEquippable by Cecil (Paladin), Kain, Cid. Def 9; Eva −10%; Mag Def 6; Mag Eva 3%. Resists Fire, Lightning, Ice. on Kain. Compare the actual menus if you have different gear. Zeus’s Strength/Vitality bonus is still a reason to hesitate before replacing it purely for a matching set.
B4: Five Treasures and Easy-to-Miss Doors
At the first opportunity, go east past the ladder for Equipment: ArrowsEquippable by Cecil (Paladin), Rydia (both forms), Rosa, Cid, Palom, Porom, Edward, FuSoYa. Power 75. Effective against Dragon enemies. Requires a bow-and-arrow pair., 10. Then work down the floor’s tiers.
The middle-west cave contains Elixir. Its entrance is a floor-height black opening beneath a jagged cliff fringe, not a framed door or a ladder. Approach from the south and walk north into it. The same visual cue helps with later rooms; an unmarked black mouth can be a perfectly good doorway.
In the lower room, collect Blizzard in the northeast and X-Potion to the west. Continue through the western exit toward the southwestern chest, but heal before opening it: Behemoth guards the Item / WeaponEquippable by Rydia (both forms), Palom, Tellah, FuSoYa. Power 45; Acc 60%; Wisdom +15. Reusable Item spell: Comet..
Stardust Guardian
Use the controlled physical approach you used in Cave Bahamut. Cecil and Edge attack, Kain AbilityKain leaves the battlefield, then lands on his target to attack. While airborne he also misses party healing; wait for recovery before jumping if his HP is low., Rosa heals and can use Blink, and Rydia can Parry or supply recovery items. Avoid unnecessary enemy-targeted spell experiments against its counters. If somebody is KO’d, revive and stabilize them rather than racing for a final hit with half the party down.
Collect the rod-icon Stardust and equip it on Rydia. This is not the expendable Stardust item. Its Wisdom bonus makes it a useful caster upgrade; using the equipped rod through Item, then up to the equipment row, also provides a reusable attack without spending MP. Don’t expect that free attack to rival her strongest spells against a major boss.
Before leaving B4, your checklist is Equipment: ArrowsEquippable by Cecil (Paladin), Rydia (both forms), Rosa, Cid, Palom, Porom, Edward, FuSoYa. Power 75. Effective against Dragon enemies. Requires a bow-and-arrow pair., Elixir, Blizzard, X-Potion and Stardust rod. Heal, check your remaining MP and bag space, then continue toward B5. More armor is coming, and several of its owners object to you taking it.