Riverwheel Sweep

The twobrid cost is the whole flexibility story: three hybrid symbols, each payable as two generic or one colored, so paying with all three colors runs it at three mana (), dropping a color swaps two generic into its place, and a deck touching none of them can still hard-cast it for six generic. It reads as a Jeskai gold card but plays as a splash-friendly one, sliding into shells that only reliably produce one of its three colors. The effect splits into a soft-lock half and a refuel half. Three stun counters is a heavier hold than the single or double you usually see: the target has to spend three separate untap steps peeling them off before it can attack or block again, so against a lone threat this is nearer to a multi-turn banishment than a tap-down, buying time rather than answering permanently. The second half is an impulse-draw with a filter attached, exiling two and letting you keep one on a clock long enough to forgive casting it on a stumble rather than the tight single-turn window impulse effects usually run. Neither half would justify six mana on its own; the pairing is a tempo-and-value hybrid that stalls a creature while replacing itself, the kind of sorcery built to stabilize a board and grind an advantage rather than to end a game outright.