Another general handling question: how does everyone handle the use of ingredients for spellcasting? The PHb only mentions the benefit of using proper ingredients during spellcasting, so that the Power Level of the spell increases by one. But how long does this "extra" take to use/integrate?
Do your spellcasters apply this as part of the Slow spellcasting action (basically taking no time, like a Free action), or do you require extra actions like "Ready item" (Fast action, analogue to drawing a weapon) and/or "Use item" (Fast action, from the general list in the Combat section)? Just curious?