What is the CR for a Tiny Servant in Xanathar’s?

Ranger 1 doesn’t have the Spellcasting feature yet, does the multiclassing rule still apply?

Call Lightning: on subsequent turns the point you chose must be within 120 feet from the point you chose for the cloud?

If a character is mounted on a broom of flying, can they use their dash action?

Reminder: If I make a ruling about a particular spell…

You are hit by a Life Drain for 10 damage. You have 8 temporary hit points. Is your Max HP lowered by 2 or by 10?

You are hit by a Specter’s Life Drain for 10 damage. You have 8 temporary hit points. Is your Max HP lowered by 2 or by 10?

Does an Unseen Servant have a mouth?

Sword of Sharpness: does the additional 4d6 damage double on a crit?