Ashiok's Forerunner
A 3/3 for five whose entire reason to exist is a single named line in its search clause: it fetches exactly one card, Ashiok, Sculptor of Fears, and nothing else. That total specificity is what turns an ordinary body into a package piece. The search reaches both library and graveyard, so the creature works as tutor and recursion outlet at once, retrieving a planeswalker that has already been cast, discarded, or milled. Flash is the concession that keeps the tax survivable. Rather than spending a full turn on a body that advances the board little, you hold it for an opponent's end step, so the planeswalker it names lands the following turn with your mana untapped. This is the construction of a fixed two-card pairing, one half of a deliberate package that only fully assembles when its partner is in the list, and it charges a real deckbuilding price for the guarantee: run this and the planeswalker together or run neither, because without the target it is a flash 3/3 whose trigger simply whiffs. It belongs to the small tradition of creatures built to fetch one named companion, where the reward for accepting the constraint is a locked two-card sequence rather than a card that carries itself. On its own the body says little; as the front half of a fixed planeswalker package it converts a five-mana investment into consistency for a card the deck had already committed to.
