Peerless Ropemaster
The bounce only reaches a creature that is already tapped, and that single clause reroutes what would otherwise be a generic blue tempo body. Man-o'-War, the archetypal enters-the-battlefield bounce, hits anything; this one waits for the opponent to turn a creature sideways first, which narrows the ideal cast to the turn after a fight. A creature commits by attacking, or by tapping for mana or convoke or crew; each of those leaves it exposed to a return that resets the invested tempo to zero. The payment for the restriction is the body: a 4/4 that trades up, not the fragile frame older bounce creatures came stapled to. That reshapes the timing question. A five-mana blue creature that returned anything on arrival would be a soft, flexible play at any point; this one wants to be held until the opponent's board is tapped from an alpha strike or a big mana turn, when the return is closest to a two-for-one and the 4/4 is closest to pure gain. With no flash, the play is a main-phase decision, so the discipline is patience: you cast it on your own turn after the opponent has spent their creatures, buying a punishment for a board already committed rather than a proactive swing you can spring whenever you like.
