text: In some unusual cases, multiple cards may be exiled to craft Jadeheart Attendant. For example, if an effect makes Jade Seedstones a copy of a permanent with a craft ability that requires multiple components, the copy effect will expire as Jade Seedstones leaves the battlefield and it will return as Jadeheart Attendant. The enters-the-battlefield ability will count all the exiled cards, and you'll gain life equal to their total mana values.