Treetop Sentinel

Protection from green on a flier is a hyper-targeted answer dressed as a defensive body. In its home environment, green was the color of reach, of big ground beaters, of the occasional fight effect, so a 2/3 flier that simply cannot be blocked, targeted, damaged, or enchanted by anything green became a clean wall against an entire color's worth of removal and combat math. The protection keyword does four things at once, and stapling it to evasion means the green opponent can neither answer the Sentinel nor stop it from chipping in over the top. That specificity is also its ceiling: against any deck without green, the protection clause is inert text, and you are left holding a four-mana 2/3 flier that does nothing special. This is hatebear logic applied to the creature curve rather than the sideboard: a body that is mediocre on rate but lopsided in exactly one matchup. Cards built this way live and die by how often you meet the color they hate, which is why protection-from-a-color creatures have always been color-pie tools first and constructed staples a distant second.