The mana value three or less clause reads as a real restriction until you map it against TMT's threat density, which lives almost entirely under that bar at common. The format's bombs are uncommon and rare legends: Shredder, Unrelenting and the mythic Turtles cost four and up, and none of them die to this. What it answers is the format's combat spine, the 2/3s and 3/2s, plus the hybrid utility creatures like Mechanized Ninja Cavalry and Foot Ninjas before they snowball under Equipment.
P1P3 to P1P5 in any black deck. WB Equipment wants two copies because the instant speed turns into a tempo blowout: hold up , let the opponent commit a Bespoke Bō to a 2/2, then exile the creature in response to the equip activation. That line is the card's ceiling and the reason it outpaces its rate. BG Food also takes it highly, though for a different reason: that deck grinds, and exile closes the loops black removal usually leaves open against death-trigger and recursion bodies, which the legendary subtheme deliberately stacks the format with.
The honest weakness is the ceiling on the other end. The card stops mattering once an opponent's curve clears four mana, and against a deck built on its four-plus legends you cut it after game one rather than leave dead copies in the maindeck. Black drafters who picked it as Hero's Downfall flexibility will find themselves holding it in the late game more than they want. It taxes the top of the curve, not the timing, so take it for the turns when the format's good creatures still cost two or three. Take it early; don't take three.
