Treetop Scout

Evasion priced at the absolute floor: a green one-drop that slips past everything on the ground and only fears flyers, which most decks running it have no intention of leaving open anyway. Green's relationship with evasion is built almost entirely on this kind of bargain, since it rarely gets to fly itself; instead it ducks under blockers, and forest-walk, trample, and unblockable-except-by-flying are the tools it uses to push damage through a board it can't out-air. The body does nothing on its own (a 1/1 trades down to any token, any blocker, any breath of wind), so the card's whole value lives in what you hang on it: an aura, an equipment, a +1/+1 engine that turns guaranteed connection into guaranteed pressure. That is the deckbuilding tension it asks you to resolve. As a standalone creature it is filler; as a delivery system for damage you've decided you want to land every turn, the restriction is narrow enough to function as a real evasive threat. The Elf Scout typing is incidental, a footnote to a card whose entire reason for existing is a single line of conditional unblockability.