Ravenous Sailback

Green rarely gets to pick its poison at instant of arrival, and this creature quietly bundles two of green's most common jobs into a single enters-the-battlefield choice: it either shakes off summoning sickness to attack the turn it lands, or it clears an artifact or enchantment off the board. That split is smarter than it looks, because the two modes almost never compete for the same board state. When you are ahead and need to press, the haste mode turns a midsized body into immediate pressure; when you are staring down a problem permanent, the destruction mode makes the creature a Naturalize with legs stapled on. A modal enters trigger like this hedges against the dead-card problem that plagues narrow answers: you never have to leave it in hand hoping the right target shows up, because the fallback is simply a beater that swings now. The body itself is unremarkable and deliberately so; the design puts its weight on flexibility rather than stats, giving green midrange a card that plays as a threat in the games where it needs a threat and as removal in the games where it needs an answer, without asking the deckbuilder to choose in advance which it is.