Great Teacher's Decree

Rebound turns a one-shot team pump into a two-turn commitment, and that reframes how an effect like this gets evaluated. An anthem-style board boost is usually a closer: you cast it when the board is wide enough to win, and if the swing stalls, the card is dead. A team-wide +2/+1 at four mana is a fair rate for that job. The exile-and-recast clause changes the math entirely. The first cast is sorcery-speed and telegraphed; the free second copy arrives before combat with no mana committed, so the follow-up alpha strike lands whether or not you tapped out elsewhere. What pays for that free follow-up is the timing: rebound fires only at the start of your upkeep, so the opponent gets a full turn and a full combat between the two pumps to trade away the creatures that make the effect lethal. That gap is the whole tension. Cast it into an empty board and you have spent four mana on nothing twice; cast it while already ahead and the second wave is often unanswerable. This is a go-wide aggressive card at its core, an early-flood shell that wants a guaranteed second swing without holding up mana, not a midrange one that would rather spend its next turn developing. The free repeat is the payoff; the upkeep-only window is the price.