Isperia's Skywatch

Detain stapled to an evasive body is the whole proposition here: a 3/3 flier that, on arrival, locks a single opposing creature out of combat and switches off its activated abilities until your next turn. The keyword made tempo legible at low rarity for the Azorius side of Ravnica's guild war, functioning as one-shot soft denial that buys a turn rather than answering anything permanently. What the body promises is a follow-up: pin a blocker or a key attacker now, then start swinging in the air next turn once the creature is back online but the threat clock has begun. The trouble is the price against that template. Paying a full turn's worth of mana to deny one creature for a single combat step, with no haste to convert the detain into immediate pressure, is exactly the trade aggressive decks want no part of, and controlling decks have cheaper ways to make it. Detain's design constraint (temporary, single-target, never a real answer) is what keeps it honest as a tempo tool at the cheap end of the curve; stretched this far up the curve, that same constraint stops being an interesting limitation and starts reading as a tax. The body is fine; the math around it is what dates the card.