Skinny Arms, the Overthinker

Basic lands are every basic land type in addition to their other types.
{u}{b}{r},{t}: Creatures you control gain Nonbasic landwalk until end of turn.
{g}{w},{t}: Search your library for a basic land card,
put it onto the battlefield tapped, then shuffle
your library. Target opponent searches their
library for a nonbasic land card, puts it onto the
battlefield tapped, then shuffles their library.
Let's see here...