Vortex Elemental

A 0/1 for one mana that wins combat by deleting it. The first ability is the trick: send this Elemental to the top of its owner's library along with everything blocking or blocked by it, then those players shuffle. As a defensive piece it answers an attacker by burying a creature somewhere in its owner's deck: no death trigger, no graveyard, just gone into the randomized middle of a library. The catch is that the shuffle takes the Elemental with it, so the kill consumes its own caster; you pay a mana, lose the body, and need a fresh threat to do it again. This is a one-shot, not a board engine. The second ability, expensive and clunky as it reads, is the lure: force a chosen creature to block, then fire the shuffle to send the bait packing. That two-step sequence is what lifts the card above a chump-blocker, turning a fragile body into a card-neutral answer that costs nothing from hand. The design tension is the price of permanence: it disrupts library order rather than killing, a softer answer in the short term but a harder one against death triggers, recursion, or a known next draw, since the target lands somewhere unknowable instead of a recoverable zone. Because it never deals damage, it sidesteps indestructibility, and because the first ability does not target, even protection from blue offers no escape: a pro-blue creature can still choose to block this Elemental, and the shuffle scoops it up all the same.