Wayspeaker Bodyguard

Two abilities pulling in opposite directions, tied together by a single deckbuilding demand. The entry trigger rebuys something cheap from the graveyard, and the ceiling matters: a mana value of two or less keeps the target list to utility dorks, small artifacts, and one-drop threats rather than anything that would spiral into a recursion loop. The real work is the Flurry clause, which only earns its keep when a deck is built to trip it. Casting a second spell each turn taps a creature an opponent controls, and the timing is yours to choose. Fire the second spell on your turn and you strip a blocker before combat; hold it for their turn and you tap down a would-be attacker before it can be declared. That window flexibility distinguishes it from a static tapper: you decide when the lock lands by deciding when you hit two spells. Both halves point at the same shell, a low-curve, spell-dense build where a second cast is routine rather than lucky, and where the entry recursion feeds the loop by rebuying the cheap pieces that get you there. At four mana it arrives as a mid-game stabilizer rather than a cheap threat, and it comes down sturdy enough to trade up and stick around, reasserting a soft-lock on the opponent's best creature turn after turn.