Luminate Primordial

The Primordial cycle was built on one scaling clause: "for each opponent." In a duel each is a single, contained effect, but at a multiplayer table the trigger fans out, answering a threat under every player's command at once. This is the white one, and its job is removal that grows with the size of the pod. Exile is the cleanest subtraction in the game: no graveyard to recur from, no death triggers to bank, and it lands on whatever each opponent's most threatening creature happens to be. The price for that reach is the life it hands back, metered by the exiled creature's power, and that exchange governs every target choice. Pulling a 7/7 off the swing gives its controller seven life, a trade you take because the board impact dwarfs the lifegain; pulling a 1/1 token gives back almost nothing, which is also why it is rarely worth the targeting. The card wants to be aimed at the biggest body on each side, the place where its exile is worth the most and the life it refunds hurts the least relative to the threat erased. The 4/7 with vigilance is built to stick around afterward, outlasting most of what it does not exile while attacking and holding the ground at once. Against Sepulchral Primordial's reanimation and Diluvian Primordial's spell theft, this is the purely subtractive one, trading board presence for life it would rather not give.