Veteran Adventurer
Party asks a deck to field four distinct roles at once, and the tax it charges is friction: you draw the classes you have, not the ones you need, and a board can stall one type short of full. This is the answer to that. A single creature that answers to every class slot never fights your existing members for a seat; it fills whichever role is still open, so a partial party lurches toward full without your having to draw the exact missing type. The type-adding text is a characteristic-defining ability, so the card carries all four classes in every zone it occupies, including the stack. That never lets it discount itself, though, because "your party" only checks creatures on the battlefield: a spell still on the stack is not a party member and cannot fill its own slot. So the reduction scales off the board you have built, not off the card in hand, and even a completed party only knocks off the printed cost, bottoming out at
. The 5/5 with vigilance is a deliberately unglamorous rate, priced to be paid closer to full when the reduction has not kicked in and to become a bargain once it has. Vigilance lets it hold the fort while it swings. Green rarely gets a body this indifferent to being the wrong role at the wrong time, and that flexibility, not the stats, is the point.
