Wizard from Beyond is a mythic Legendary Enchantment — Background card from 2022 Heroes of the Realm (PH22), collector number 5.
Create a Character (Any nonlegendary creature can choose this as its Background. It becomes legendary and can be your commander.) Commander creatures you own are Clerics, Rogues, Warriors, and Wizards in addition to their other types. As long as you have a full party, if an ability of a creature you control triggers, that ability triggers an additional time.