A three-mana 2/2 flyer in a medium-speed format with one to two removal commons per color is asking the format a real question: am I worth the card slot before the trigger ever matters? In TMT, the answer is yes in narrow homes and no in most others. The Disappear trigger needs a permanent to leave the battlefield, and the set's most reliable engines for that are the Food subtheme (Anchovy & Banana Pizza, Omni-Cheese Pizza) and the token-and-sacrifice texture that lives in BG and WB. Those are the decks that pick it, and they pick it around P1P7 to P1P9, after their removal and their key two-drops are accounted for.
In a straight BG Food build, the trigger is genuinely free: a Pizza sacrificed for a life or a card on your end step arms the scry on the same end step. In WB the support is thinner but the evasion matters more, because WB tends to grind through Grounded for Life and small flyers close the games that ground stalls won't. UB Mill, if it materializes, can also use it as a clock body that occasionally smooths draws.
Outside those decks it is a Wind Drake at three mana that dies to Stomped by the Foot and Dimensional Exile without ever scrying. Don't draft it as a generic flyer; the body is too soft for the removal density and the Equipment-fueled ground creatures (Bespoke Bō on a 2/3 erases it on the swing back). Maindeck in the sacrifice decks, sideboard or pass in the rest. The Sneak-cost angle is real but marginal: a 2/2 flyer is not the cheapest enabler the format offers.
