Darksteel Shield is a shield that provides 16 DEF, Light Resistance +5, and Dark Resistance +5. It can be equipped by level 60 Paladin and Dark Knight. It can be bought for 540 Sparks of Eminence from Isakoth in Bastok Markets (E-11), Rolandienne in Southern San d'Oria (G-10), Fhelm Jobeizat in Windurst Woods (J-10), and Eternal Flame in Western Adoulin (H-11).
Darksteel Shield is a low-ranked shield that provides 2 Defense, 2 Magic Defense, 5 Evasion, 5 Magic Evasion, and nullifies Dark-elemental damage. It can be bought for 450 at Urbeth, Invidia, Spelvia, and the Kingdom of Horne after saving the king.
Darksteel Shield is a level 30 shield that provides +29 Bravery, -2 Attack, +26 Defense, and Warp Defense +10%. It can be obtained from the shop by trading 22050 gil, Heavy Shield, and Basilisk Pebble.