Glintwing Invoker

Eight mana to give a 3/3 a one-turn upgrade to a 6/6 flier is the kind of arithmetic that only paid off in the slow, creature-soaked games this cycle was built for. The Invokers were the uncommon mana sinks of their era: each a serviceable midgame body that turned every excess land into a repeatable threat once both players had emptied their hands and the game stalled into a topdeck war. This is the evasion specialist of the group, the answer to a ground board gone static, since the +3/+3 and flying arrive together and let a grounded attacker suddenly clear the wall. The activation runs at instant speed, which matters more than the size: holding up the threatens a combat-step blowout or a surprise lethal swing, and the buff fading at end of turn keeps it from demanding a removal spell the way a permanent threat would. The lineage here is the activated-ability creature as long-game insurance, the same structural role Morphlings and manlands fill, compressed into a design that asks nothing of your deck except enough lands to eventually reach eight mana. It is a card built entirely around the premise that games run long enough for that activation to become routine, an assumption the era's design wore openly.