Land's Edge

A symmetric red enchantment from the era when Wizards still printed World enchantments as a balancing lever, and a clean example of the design philosophy that defined early red: power for everyone, or no one. The activation cost is the discard itself, paid immediately when the ability goes on the stack, and the damage only lands if the card pitched to pay it was a land card. That makes it a flood-punishing Howitzer that anyone can fire, since the "any player may activate" clause turns the enchantment into a shared piece of the board rather than a private resource. An opponent can pitch their own dead lands to point two damage at a third player, fire it at the controller to claw back from a losing position, or simply burn themselves to dodge a deck that wins next turn. Because discarding is an activation cost, a player chooses freely which card to pay with from their own hand; this is a deliberate activation, not something an opponent can fold into a forced-discard effect. The World supertype keeps it to one on the battlefield at a time (a second one entering replaces the first), the period's standard answer to an effect this symmetric and this repeatable. The real artifact here is a design dialect that has largely been retired: the shared-resource permanent. Later red discard-as-cost effects kept the land-matters payoff but dropped the communal activation and the World tag, because the headaches outweighed the payoff.