A Hexcasting/Iron's Spells 'N Spellbooks interop mod. Currently adds 5 hex spells that apply status effects from iron's.

The status effects in question are as follows (in no particular order):

• True Invisibility (invis that also hides your equipment)
• Angel Wings (elytra)
• Planar Sight (see mobs through blocks)
• Oakskin (pretty much Resistance but with smaller reduction per level)
• Charged (a couple of misc combat-applicable buffs)

All of the spells to apply these effects are Great Spells, and as such you will need to find their patterns in loot chests (or brute-force them).