Sleep of the Dead

For a single blue mana, this taps a creature and denies its next untap step, a rate nobody pays for the effect alone. It is a sorcery, so it can never ambush an attacker mid-combat; you fire it on your own turn, in advance, to pin down a threat you already see coming. The wager is escape. A tap-and-lock spell tends to run out of gas in the late game, exactly when a repeatable tapper starts to matter, and escape converts graveyard filler into a reusable brake for that stretch. The lock never puts the creature in the yard, so it hands the opponent neither a death trigger nor a reanimation target; it just keeps the biggest body home turn after turn. Exiling three other cards each recast is the meter that stops the loop from being free: the price scales against your own graveyard depth, so a deck that fills its yard quickly pays it comfortably while a thin yard runs dry. That inversion is the whole design idea. The front half is a throwaway tempo play you cast early and forget; the escape half is why the card earns its slot, a self-recurring pacifism-in-motion that turns a spent graveyard into a repeatable answer to one large creature, planned a turn ahead every time.