Angel of Salvation

The wrinkle here is the collision of flash and convoke, two mechanics that rarely belong to the same card because they pull against each other. Convoke wants a wide board to tap; flash wants to ambush at the end of an opponent's turn. Put them together and the 5/5 flying body lands at instant speed for a fraction of its eight printed mana, conjured out of creatures you already have on the table without ever passing the turn to do it. That timing window is what makes the damage-prevention trigger sing: flashing this in during combat both adds a flying blocker and divides five points of prevention however you like across your team, turning what would be a profitable attack into a stalled one and leaving an Angel behind to swing back. It is a combat trick and a board presence folded into the same surprise, paid for with bodies rather than untapped lands. The prevention shield is the restraint that keeps the package fair: it is a one-shot effect that triggers only on entry and only for the turn it arrives, so the card rewards reading the combat step correctly rather than sitting back as a permanent fog. Most flash creatures of this size simply blink into existence as a blocker; folding convoke and a divisible prevention effect onto the same chassis makes the moment it enters the whole decision, not an afterthought.