Magic: The Gathering (MTG) : Wizards of the Coast's pioneering TCG uses a core system of Common, Uncommon, Rare, and Mythic Rare, denoted by colored set symbols
Its signposts are split between a go-wide card (Rinoa Heartilly and a summons card (Garnet, Princess of Alexandria)
Each pack contains 1 art card, 1 full-art basic land, 6 connected commons or uncommons, 1 showcase or double-faced common/uncommon, 2 cards of any rarity (chance of showcase or double-faced), 1 rare or mythic rare (chance of showcase or double-faced), 1 foil of any rarity (chance of showcase or double-faced), 1 token/ad or special card from Magic's history.
Archazias Island introduces two new starters: Amethyst & Steel featuring 007-051-jafar-newly-crowned and 007-049-iago-giant-spectral-parrot, and Ruby & Sapphire featuring 007-126-belle-mechanic-extraordinaire and 007-136-beast-frustrated-designer
They do not introduce new gameplay mechanics or abilities unique to these rarities
This means they are suitable for multi-player formats like commander