Catnap spell: are elves unable to be affected by it, even willingly?

If a Storm Sorcerer casts Dragon’s Breath lightning damage, does that initial casting trigger the extra damage from “Heart of the Storm”?

Does an Improved Pact Weapon Ranged Weapon generate it’s own ammunition?

Does this mean that if you have Pact of the Blade you can use the Hex Warrior feature with a two-handed weapon?

The workweeks by rarity in the table for magic item creation downtime don’t seem to correspond to the cost divided by 50, Have I missed something?

How does the grave domain Circle of Mortality feature work with the Life Transference spell on a 0 HP target?