Stromgrad, Fortress Architect

{3},{t}: create a 0/8 wall creature token with defender
Creatures you control have: {0}: until end of turn, this creature becomes a 0/8 wall, with defender. If that creature had flying, it continues to have flying. The same goes for reach, lifelink, deathtouch, first strike, doubkestrike, and trample.
Anything is a wall if I put my mind to it. Even you.