Silkwing Scout

Most fixing of this era picked a color and committed to it. This faerie does something stranger: it is a blue body whose land-fetch ability is paid in green, so it only fetches when you already have the off-color mana to feed it. That awkward gold split is the design conceit. The creature itself is a flyer any blue deck can cast, but the sacrifice ability rewards a Simic build that wants both halves of its identity online, converting a spent attacker into a fixed basic on the battlefield. The land arrives tapped, so the trade is a tempo loss in the moment and a mana-base correction over time: you give up a point of pressure now for the exact basic you were short. It reads as ramp, but it functions more as splash insurance, smoothing a two-color or three-color manabase using a creature you were happy to run anyway. The requirement that a blue creature spend green to activate is precisely why the ability never comes free in mono-blue; it pays off in decks already straddling the green-blue line, where that cost is one the deck can actually meet.