Deny the Witch
Most hard counterspells stop at the stack. This one keeps going: it answers the widest possible band of things you can point a counter at, and then bills its controller on the way out. The three-color cost is the price for that reach; Esper is the shard that historically owns permission and attrition both, and this design fuses them into a single instant. What makes the second clause more than a rider is the direction the incentive runs: the life loss scales with your own board, so the card wants to be cast while you are ahead on creatures, not while you are hunched behind an empty battlefield holding up mana. That inverts the usual permission posture. Control decks play counters to survive from behind; this one rewards you for having already built a presence, turning a defensive answer into a tempo-and-drain punish. The clause to read carefully is the target line, because it reaches past spells to activated and triggered abilities. That is a far rarer thing to counter cleanly, and it means the card can shut down the payoff on a fetch, an equip, a saga chapter, or a commander's cast trigger, not just the spell that started the chain. The friction is real: four mana at three colors is a steep ask for an answer, and an empty board makes the drain purely cosmetic. But when the board is yours, few counters do this much on both axes at once.

