Augur of Bolas

A 1/3 for two mana is a body built to block, and that defensive wall is the whole point of the engine attached to it. Spell-heavy decks have a structural problem: they want as few creatures as possible to keep their spell density high, but they still need bodies to survive the early turns against aggression. This is the answer to that tension. It absorbs an early attacker, holds the ground a control or tempo deck cedes by playing so few creatures, and the enters-the-battlefield dig refunds the card it cost you by pulling a Counterspell, a burn spell, or a sweeper out of the top three. The selection is narrow on purpose: it only ever finds instants and sorceries, so it rewards a deck that is mostly those, and it whiffs in a creature-dense list. That restriction is what justifies the card advantage on a cheap blocker. Filtering and digging for your best spell while presenting a toughness that shrugs off most one-drops is a lot of value packed into a slot that asks only that you build around instants and sorceries to begin with. It belongs to the lineage of creatures that pay rent in card selection rather than combat, a body that exists to hold the fort while it hands you the spell you most needed to draw.