Flying Crane Technique

The Jeskai colors converge on exactly one thing here: turning a stalled board into a lethal one at instant speed. Untapping your creatures folds the defensive cost of a wide assault into the same spell that grants evasion, so you alpha-strike without leaving yourself open to a fatal swing back; the untap grants vigilance-by-fiat on the turn you commit. Flying does the ground-clearing, lifting your team over creatures stuck on the floor, though it is not an unblockable clause: fliers and reach on the other side still get their say in Declare Blockers. The number that matters is not the six-mana price but the multiplier. Double strike roughly doubles every untapped creature's combat output, so a token board that could never push through profitable damage suddenly represents a lethal figure. The instant speed is doing more than protecting your own attack, though. Cast during the opponent's declare-attackers step, before blocks are set, the untap turns your whole tapped-out board back into a wall of flying double strikers, and now you assign blocks with a team that eats attackers and swings the combat math the other direction. That dual identity, closer on your turn and defensive ambush on theirs, is what separates it from a plain pump spell. It accomplishes nothing the turn before it matters and everything the moment it resolves, on either side of the table.