How does Globe of Invulnerability interact with an item like Staff of Thunder ?

When a spell calls for a spellcasting ability check, do you add your proficiency bonus?

Could I cast Eldritch Blast two times as a action & bonus action?

What’s the casting time of a prayer of healing spell cast from a scroll?

Is the action to maintain a Witch Bolt the Cast a Spell action?

Does a beast’s natural ‘melee weapon attacks’ count as ‘unarmed strikes’?

When spells are “centered on a point” does that allow the point to be between tiles on a battlemat?