Nylea's Colossus

Doubling power and toughness is a Voltron effect most colors reach through Auras or one-shot pumps; this one folds the payoff into a constellation engine that keeps firing. Every enchantment you land, including the Colossus itself the moment it hits, doubles a creature's stats until end of turn, so in a deck stacked with enchantments the doubling stops being a single big turn and becomes a per-cast escalation. The trigger fires on any enchantment entering, not just Auras attached to the target, which decouples the effect from suiting up a specific creature: you can double a token, a hexproof threat, or the Colossus's own six power without committing a card an opponent can profitably remove. The doubling compounds, too, since each new trigger works from the current power and toughness, not the printed line, so a chain of enchantments in one turn pushes a modest attacker into lethal territory geometrically rather than additively. What keeps the engine honest is not the mana (seven for a 6/6 is a genuine tax), but the sorcery-speed pace at which those enchantments resolve: the triggers arrive one at a time as the deck develops, so a board wipe answering the whole assembly is still worth more than trading for a lone Aura. It reads as a finisher, but it functions as a reward for building an enchantment density most decks never bother to reach.