Guardian of the Gateless
Most blockers trade one-for-one and resent any attempt to swarm them; this one inverts that math. The clause that lets it block any number of attackers folds a board-wide alpha strike into a single combat problem, and the size bonus turns that block from a suicide pact into a genuine calculation: against three attackers it fights as a 6/6, against five as an 8/8, its power spiking to match exactly the width it absorbs. The catch is the other half of the exchange, and it is what keeps the design honest: it still takes the combined combat damage of everything it blocks, so soaking five 2/2s means eating ten while swelling to 8/8, which kills it. But the toughness bump means survival is a live question, not a foregone loss: block two 2/2s and it stands as a 5/5 taking four, walking away clean and ahead. That reframes it as a threat-of-a-trade rather than a wall. A single 3/3 flier that can eat two or three creatures for one, sometimes surviving, sometimes dragging the whole crew down with it, but only when the aggressor overcommits into it. The flying stops it from being purely reactive, letting the same body pivot into an evasive clock once the ground stalls. Its limit is that the +1/+1 fires only on the block, and the attacking player controls whether it ever fires: the disciplined line against it is often to hold the swarm entirely, so the deterrent works best against an attack that never comes.
