Using a magic item to cast a spell is its own unique action type. Jeremy Crawford has said via Twitter that casting spells from magic items (scrolls, wands, staves, etcetera) is neither a Use an Object/Item nor a Cast a Spell action.
Can you use Metamagic on magic items?
If a magic item’s description says you cast a spell from it, you can use Metamagic on the spell.
Can you cast a spell and take a bonus action?
A spell cast with a Bonus Action is especially swift. You must use a Bonus Action on Your Turn to cast the spell, provided that you haven’t already taken a Bonus Action this turn. You can’t cast another spell during the same turn, except for a cantrip with a Casting Time of 1 action.
What happens when a player with priority casts a spell?
If a player with priority casts a spell or activates an activated ability while another spell or ability is already on the stack, the new spell or ability has been cast or activated “in response to” the earlier spell or ability. The new spell or ability will resolve first. See rule 608, “Resolving Spells and Abilities.”
Is it possible to cast a spell on someone?
The universe is one of the most responsive entities I know. It gives to people that which it believes they are ready for and the moment you start concerning yourself with learning how to charm a spell you have begun a journey in the direction of living your life according to your own terms and desires.
When do you cast an instant spell in RuneScape?
116.1a A player may cast an instant spell any time he or she has priority. A player may cast a noninstant spell during his or her main phase any time he or she has priority and the stack is empty. 116.1b A player may activate an activated ability any time he or she has priority.
Can you put spells on the stack at any time?
The important bit to remember is that yes, as usual, you can put spells/effects on the stack at any time even after spells have started to be resolved, as long as said spells/effects can be cast at “instant speed”, not “sorcery speed”.