Confront the Unknown

The math runs backward from how green combat tricks usually price themselves. A single green mana does not buy a flat buff here; it buys an investigate and a pump scaled to every Clue you control, the freshly minted one included. Because the spell creates its Clue before the +1/+1 lands, the floor is never zero: even with no other artifacts on the board, you get a one-mana trick that grows a creature by one and leaves a card-draw token behind. Cast it after a few turns of Clue accumulation and that same mana swings combat by a margin no instant at this cost has any business reaching. That is the wrinkle: the ceiling is set entirely by board state you built earlier, so it rewards a deck that treats Clues as a resource to stockpile rather than to crack on sight. It sits at the intersection of two green identities that rarely share a card: the tempo-oriented combat trick and the grindy artifact-value engine. The tension between them is the point. Every time you hold up that one mana, you are deciding whether you are buffing now or banking toward a bigger swing, and whether the Clue you just made is fuel for the next Confront the Unknown or a card you will eventually draw. The investigate clause smooths the floor either way, since a whiffed trick still replenishes itself toward a card later.