Quantum Misalignment
Cloning a creature is old design; cloning it twice off a single card is the wrinkle here. Rebound turns what would be a one-shot copy spell into a two-turn engine: cast it, get a copy that isn't legendary, exile it, then recast it free on your next upkeep for a second copy. That "isn't legendary" clause carries the weight, and it does double duty. It lets you photocopy your own legendary commander or bomb without the legend rule immediately eating one of them, and combined with rebound it means both copies coexist alongside the original. The rate is honest about what it is: five mana for a copy that arrives now, plus a free copy next turn, with the tax being that you have to wait a full turn cycle for the second half and you have to survive to your upkeep to collect it. The target restriction (a creature you control) keeps it from stealing, so this is purely a go-wide-with-your-own-threats tool rather than a tempo swing against an opponent's board. Clone effects have historically been generic and reusable across whatever's biggest on the table; anchoring the target to your own side and paying it off over two turns reframes the archetype from reactive mirror-matching to proactive board multiplication.
