Jadzi, Oracle of Arcavios // Journey to the Oracle

• WWizards of the Coast2021-04-16
  Official Ruling
  Each magecraft ability has a different effect, although they all have the same trigger condition, whenever you cast or copy an instant or sorcery spell.
• WWizards of the Coast2021-04-16
  Official Ruling
  If an effect creates multiple copies of an instant or sorcery spell, magecraft abilities trigger once for each copy created by the effect.
• WWizards of the Coast2021-04-16
  Official Ruling
  You may choose not to cast a nonland card revealed by Jadzi’s triggered ability. If you don’t cast it, it stays on top of your library.
• WWizards of the Coast2021-04-16
  Official Ruling
  If you reveal a modal double-faced card with Jadzi’s triggered ability, and both faces are nonland, you may cast either face by paying rather than its mana cost. If only the back face is a land, you may cast the front face. If both faces are lands, you will put onto the battlefield front face up.
• WWizards of the Coast2021-04-16
  Official Ruling
  Some effects instruct you to copy an instant or sorcery card in a zone other than the stack. These copies do not cause magecraft abilities to trigger. However, most effects that do this also allow you to cast the copy, and casting the copy will cause magecraft abilities to trigger.
• WWizards of the Coast2021-04-16
  Official Ruling
  If you cast a spell with in its mana cost using Jadzi’s magecraft ability, you must choose 0 as the value of X.
• WWizards of the Coast2021-04-16
  Official Ruling
  Putting a land onto the battlefield does not count as playing a land for the turn and doesn’t use the normal timing restrictions.
• WWizards of the Coast2021-04-16
  Official Ruling
  Because the magecraft ability supplies an alternative cost of for the spell, you cannot pay any other alternative costs that may apply. However, you may pay additional costs and must pay any additional costs that are required.
• WWizards of the Coast2021-04-16
  Official Ruling
  If an effect creates a copy of an instant or sorcery spell, this will also cause the magecraft ability to trigger.
• WWizards of the Coast2021-04-16
  Official Ruling
  If you’re casting the card you reveal with Jadzi’s ability, you ignore normal timing restrictions.
• WWizards of the Coast2021-04-16
  Official Ruling
  For example, if you control Archmage Emeritus and cast an instant or sorcery spell, Archmage Emeritus’s magecraft ability will trigger and you will draw a card.
• WWizards of the Coast2021-04-16
  Official Ruling
  You may activate Jadzi’s activated ability only while Jadzi is on the battlefield. If Jadzi is no longer on the battlefield as the ability resolves, it won’t return her to your hand from any other zone.

Rulings via Scryfall