Ashiok's Skulker

The 3/5 body is the tell: this is a defensive statline welded to an aggressive ability, and the friction between the two is the whole design. That toughness stonewalls most mid-game ground attackers and survives the stall it helps create, but the same card can spend to slip past a blocker whenever it wants to press the advantage. The cost is deliberately steep because the evasion is repeatable and open-ended: a self-contained unblockable threat that fires off surplus mana is a mana sink, and mana sinks in the late game get priced to keep them from running away with attrition matchups. At 3 power, it does not close quickly; it grinds. You pay the tax turn after turn, chip in three damage each swing, and let the wall hold the fort in between. The design intent is not a race but an inevitability engine: reach the point where you have lands to spare and no better use for them, and this converts that surplus into a slow, unanswerable clock. It is a common-rarity creature built for the deck that expects to reach the late game with mana left over, a quiet finisher for a grindy shell that has already stabilized and only needs a way to end things.