Temporal Eddy

Tempo built into the most literal shape possible: take a creature off the board and bury it one card deep, so its owner draws it again next turn instead of doing anything else. This is the Time Ebb idea applied to permanents that matter, with the crucial widening that it can hit a land as well as a creature. Bouncing a land to the top of its owner's library is a quiet beating against an opponent you want kept off their mana: they redraw the land, replay it, and lose a turn of development while their hand stalls. The design tension is in the word "top." Unlike a bounce-to-hand effect, this hands the controller no free card; it costs them their draw step's worth of new options and strips any auras or counters as it clears the threat off the battlefield. It buys a turn rather than answering anything, which is the honest ceiling of the effect and the reason it lives in slower, grindier blue shells rather than tempo aggro. It is removal that removes nothing, a stall dressed as interaction, and its value scales entirely with how much you can do with the turn it hands you.