Iron Dragon's Scales

Iron Dragon's Scales (鉄龍の鱗 Tetsuryū no Uroko) is an Iron Dragon Slayer Magic Spell.

Description
Gajeel covers part of his body (or the entirety of it) with steel scales to dramatically increase his offense and defense. These scales are strong enough to shatter bone, and resilient against regular flames. This scale is much more harder than normal iron (just like Natsu's flames) as shown when Pantherlily's sword wasn't able to cut this iron.