Create Spell Ink

You create up to 150 gp worth of the rare ink used to scribe spells on the ground or in containers within range. 

This ink can pay for up to 60% of the cost to scribe a spell scroll or to copy a spell into your spellbook.  It can pay for 100% of the cost to copy a spell from your spellbook, though you still need to provide the new book. 

At Higher Levels.  When you cast this spell using a spell slot of 4th level or higher, you can create another 50 gp worth of ink for each slot level above 3rd.