Bosk Banneret

Cost reducers that key off two overlapping categories are rare, and this one sits on the seam where Treefolk and Shaman intersect: a tribe built around mass-pumping toughness and a class scattered across green's spell-engine creatures. The 1/3 body is deliberately defensive, the kind of stat line that holds ground which grows taller every time another Treefolk lands, but the body is incidental. The work is the discount, and it stacks the way all of these reducers do, so a board with two copies turns the relevant spells two cheaper apiece. A spell that happens to be both Treefolk and Shaman still only comes down cheaper from a single copy, so the two type lines do not double up; they simply widen the net of what qualifies, which matters because few decks field deep counts in both groups at once. What pays for the effect is the narrowness. This reduces nothing outside its two named groups, so it is dead weight in any deck not committed to a critical mass of Treefolk or Shaman creatures, and even where the count is there, the discount only starts paying once a second castable spell follows it onto the stack. It is a build-around enabler, not a standalone card: the floor is a fragile two-mana blocker, the ceiling is a tempo accelerant that brings an entire tribal curve down a turn early.