Avalanche of Sector 7
Most creatures that scale off an opponent's board key on the things you're trying to deny them: lands, cards in hand, a growing creature count. This one keys on artifacts, and that inversion is the entire premise. Against a lean board it does nothing, a 0/3 with menace that clogs a lane; against artifact-dense tables its power climbs one point at a time, updating the instant an opponent resolves another mana rock or utility trinket, and it demands nothing from your own board to get there. The second ability is the sharper of the two. It turns every artifact activation across the table into a life-payment tax, so an opponent who leans on activated-ability engines (equipment, mana rocks with modal pump costs, the usual toolbox artifacts) bleeds a point each time they reach for their toys. Nothing here is symmetric: both abilities scale purely with what the opponents choose to do, which makes this a fully reactive design that punishes greed and ignores restraint. Menace matters more than the keyword usually does, because a body whose size is dictated by the opponents needs a reliable way to actually connect: a single chump can't hold it back, so the clock it eventually becomes can't be cheaply parked. The opponents set both dials, the power and the drain, and the more they want to play their own deck, the harder this leans on them.
