Oko, Lorwyn Liege // Oko, Shadowmoor Scion

The joke writes itself, and the design leans into it: an Oko whose one face grants creatures every creature type and whose other face makes 3/3 Elk. This is the character as MTG mythology recorded him (the shapeshifter who turned things into Elk) rebuilt as a transforming double-faced planeswalker that flips for a single mana in your first main phase. The front face is the tempo half: it saturates a single creature with all creature types and shrinks a blocker with -2/-0. That face carries a paid transform trigger, so spending at your first main phase turns Oko into the back face, the grindy half: milling into permanents you can rehand, spawning a pair of green Elk, and an ultimate that names a creature type to buff whatever tribe you have assembled. The back face costs to flip you home again. The transform is directional, not a free choice each turn: the face you are on dictates the cost and the destination, so committing to the flip means committing to whatever that other side wants to do next. The two halves talk to each other through that type-granting +2. Turn one creature into every creature type, pay to flip, and the emblem's +3/+3, vigilance, and hexproof will catch that creature no matter which type you name, since it now counts as all of them. It does not blanket your board; it guarantees your keystone stays under the buff while you fill in an actual tribe around it.