Power Armguard
Character: Wakka
Abilities: any 3 of: (HP +5% or HP +10% or HP +20% or HP +30%)
Equivalent: Guardian Ring (Yuna)
Knight's Armlet (Kimahri)
Knight's Bracer (Auron)
Knight's Shield (Tidus)
Knight's Targe (Rikku)
Power Bangle (Lulu)