Spidersilk Net

A free artifact to deploy is the whole structural trick here: an Equipment with no casting cost hits the battlefield the moment you draw it, so its entire price is folded into the equip activation and paid later, exactly when the right blocker presents itself. That deferral is what separates the Net from a one-shot reach trick like a pump-and-fly combat instant. Because equip is a sorcery-speed action, it can never ambush an incoming flier mid-combat; you have to commit your defense in advance and dare the opponent to attack into it. In exchange for that honesty, the answer is permanent and mobile: grant reach to one ground creature now, peel it off two turns later, and bolt it onto a fresh blocker when the threat changes. The +0/+2 is the quiet half of the math, padding the chosen blocker so it survives the trade it was reassigned to make rather than just chump-stopping once. What the design captures is a standing tax on an opponent's evasion rather than a single moment of denial: as long as the Net sits on the board, every flier they play has to reckon with a reach-granting Equipment that costs nothing to keep and a couple of mana to redirect.