In each 12-card booster, you'll find: 1 Mystical Archive card (uncommon, rare, or mythic rare) 1 Lesson card of any rarity 1 Traditional foil card of any rarity* 1 Card from The List in 1 out of 4 boosters (*This includes global Mystical Archive cards in all non-Japanese Set Boosters, and both global and Japanese alternate-art Mystical Archive cards in Japanese Set Boosters.) Plus, you get a delightful art card, 1 in 20 of which feature a foil-stamped logo or artist signature
Bears are widely used in the rules examples, when you need a simple creature without abilities
Kithkin Kindred The elephant in the room is that most of you would never build a strict kindred build (not running any non-Kithkin)
your boards the only limit
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In fact, the only non-planeswalker Mythic that can even be considered "fringe playable" is Rafiq of the Many, which shows up in about one-tenth the number of deck lists than a true staple like Elspeth, Knight-Errant