Eldritch Spellweave (Su)

Beginning at 5th level, you can apply an eldritch essence invocation you know (other than greatreach blast or spellblast) to any arcane spell that affects a target or that requires a melee or ranged touch attack. The spell's level must be at least as high as the level of the eldritch essence (for example, you can apply hellrime blast only to a spell of 4th level or higher). If the essence requires a saving throw, use the normal save DC for that essence. If an eldritch essence invocation changes the damage of the spell, it can be applied only to a spell that deals damage (you can't add brimstone blast to charm monster).

If the spell has more than one target or allows more than one attack, you choose one target to be affected by the invocation; all other targets take only the normal effect of the spell.

You can use this ability a number of times per day equal to 3 + your Cha modifier (minimum 1).

NOTE: If you have Lord of All Essences feat, only the essence from first slot will be used.