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Xcalber is a powerful Weapon that doesn't quite live up to its potential due to the bug preventing family and elemental Weapon properties from functioning. It's still an amazing Weapon, far beyond anything other than the Masmune. You may even consider leaving the Floating Castle as soon as you find the ADAMANT just to go get it. Don't replace it with the Masmune—the Xcalber may be the second-best Weapon in the game, but it's far better than third place. Your best bet is to have your KNIGHT keep using it until the end of the game.
A sword of phenomenal strength.
Damage
45
Crit
20%
Hit
+35%
Effective Against
Aquatic, Dragon, Giant, Magic Beast, Regenerating, Spellcaster, Undead, Werebeast
Value
30,000 gil (30,000 gil on Easy)
Found In
Mt. Duergar
Excalibur is quite an interesting Weapon. It's not nearly as powerful as the Masamune, but it actually tends to be more accurate, because it's strong against almost everything. Any Monster with an Elemental weakness or a Family will suffer the wrath of the Excalibur, in effect making its Attack 49 and making hits 20% more likely. Sadly, the Accuracy bonus doesn't add any extra attacks. This Weapon is so good that it's probably worth leaving the Flying Fortress as soon as you find the Adamantite just to go get it. Don't replace it with the Masamune—the Excalibur may be the second-best Weapon in the game, but it's far beyond third place. Your best bet is to have your Knight keep using it until the end of the game.
All knights yearn for this sword of unparalleled power. Accept no imitations.
Sprite
Attack
100
Accuracy
+75%
Type
(Icon)Sword
Evasion Bonus
+1% × ((Icon)Sword skill + 1)
Magic Penalty
30%
Effective Against
Dragon, Giant, Spellcaster, Undead, Werebeast
Value
65,000 gil
Found In
Castle Deist 2F
Dropped By
Iron Giant
Excalibur is a ridiculously powerful weapon, second only to the Masamune. Even without its elemental and family attacks, its attack is better than any other weapon. With strengths against five Families and every Element, the Excalibur's attack is often 120, not the 100 that's listed. Note that the +20 attack bonus for family and elemental weaknesses do not stack, so it won't get +40 against a Fire Gigas, for example. This is an amazing weapon, and it's very easy to get—just visit Castle Deist after the events in Castle Palamecia. You can even have a mage use Excalibur, with its relatively low 30 magic penalty, though it's unlikely any mages will have much sword skill.
Sprite
Pearl-elemental sword
Type
Icon
Sword
Value
1 GP
Bat.Pwr
217
Hit Rate
150
Evade %
20 (not used)
MBlock%
0
Vigor Bonus
+2
Speed Bonus
+2
Stamina Bonus
+1
Mag.Pwr Bonus
+1
Element
Pearl
Used With
SwdTech, Runic, 2-hand, Throw
Found In
Kefka's Tower Goddess's Room
Excalibur is a powerful sword with a useful Elemental property in Pearl. It offers minor Attribute boosts to all four major Attributes. If you have a Character attacking with a sword in the late game, Excalibur is a decent choice, but Characters relying primarily on Magic will get more out of the Mag.Pwr boost of the Enhancer.