Swirling Torrent

The interesting half is the tuck. "Put target creature on top of its owner's library" is a rarer effect than plain bounce: instead of handing a creature back ready to recast, it strands the thing for a full draw step, forcing the opponent to redraw it before they can even think about replaying it, and denying them a fresh card off the top in the process. Nothing dies, nothing is exiled, so it is the softest kind of answer imaginable, but against a bomb with an awkward cost it buys a genuine turn and taxes the next draw at the same time. The modal frame lets you split the two effects across two creatures: one tucked, one bounced, two threats pushed out of a single combat. Pointing both modes at the same creature does not stack, though: the tuck resolves first, the creature changes zones, and the bounce clause finds nothing left to target. That is the ceiling on the "hit harder" fantasy; the card is built to spread its effect wide, not to double up. The tension is the rate. Six mana for what amounts to two bounces stapled together is a lot, so the card only justifies itself when you reliably want both halves against a committed board. It reads as a control-shell tempo swing rather than an efficient removal spell, betting that stranding two creatures for a turn is worth what it costs to cast.