Ward of Bones

An asymmetrical prison that fires from behind, not ahead. The accounting is the whole design: each clause checks whether an opponent controls more of a permanent type than you, and only then slams the door, which means the lockdown rewards the player who has fallen behind in development, not the one who raced out front. Cast it when your creature, artifact, enchantment, or land counts are low, and every opponent sitting on a bigger board is frozen out of casting more of whatever they already lead on. Lands work the same way: an opponent with more lands than you can't play another. The card never touches its caster (the text reads "each opponent" throughout), so the friction falls entirely on the developed boards across the table while you keep your own numbers small and let the comparison do the locking. The catch is the six-mana artifact that adds no immediate pressure: it blocks nothing, and any artifact removal lifts the whole stop sign at once. The category-by-category tracking (creatures, artifacts, enchantments, and lands each measured separately) is what gives it teeth on grindy multi-permanent boards, where an opponent who has overcommitted on any single axis becomes the one paying for it. This is a stax piece for the player content to stay lean, then drop a soft ceiling on everyone who built faster.