Oran-Rief Invoker

The Invoker cycle ran on one promise: an activated ability priced at exactly eight generic mana, colorless in every sense, so that any deck flooding on lands has a sink to point the surplus at regardless of what color it is. The green entry converts a plain 2/2 into a 7/7 trampler for that fee, a bargain the whole cycle demonstrates in miniature. As a body it is a turn-two blocker, modest and forgettable once the board stalls; the activation is a lever you reach for only when the game has run long enough to leave you with nothing better. The inefficiency is the point: eight mana for +5/+5 and trample is a deliberately steep rate, relevant only in the grindy, resource-rich games where mana has outrun spells. Trample is what keeps the payoff from collapsing, since a 7/7 with no evasion simply eats a chump block and gets nowhere; the keyword turns raw size into damage that connects. This is a teaching design as much as a playable one, a clean illustration of how a low-rarity creature can matter across the entire arc of a game without ever exceeding a commons-and-uncommons rate. Floor and ceiling are both legible on the first read, and neither pretends to be more than it is.