Mindreaver

Heroic usually pays off in stat boosts or board swings; here it pays off in foreknowledge. Targeting this Wizard with your own spells does not protect or pump it: it exiles three cards from a chosen player's library face-up, where both of you can see exactly what came off the top. The sacrifice ability then weaponizes that exiled pile as a name-matching counter, stopping any spell whose name you have already watched leave their deck. That two-step loop is the design tension: the counter is only as good as your scouting, so before you know whether the exiled cards will ever matter, you must first spend spells targeting a fragile body. It wants a shell of cheap targeted instants and sorceries, the same spells that feed heroic anyway, turning each into both a tempo play and a reconnaissance pass. The fragility is the cost of admission: a single point of toughness means it dies to almost any removal, and the counter consumes the body to fire, so the engine eats itself by design. What it represents is a rare attempt to bolt a conditional hard counter onto a creature and gate it behind two locks at once, a heroic trigger and a name match: a Wizard that fights spells the way a control deck does, but only against threats it has already glimpsed coming.