Leng Lensou

{1}, Sacrifice a nontoken land: You and target opponent each create a token land with
"{t}: Add {g} or {b}".
Whenever an opponent attacks or targets
you, you may gain control of all token lands
they control and untap them.
{3}, {t}: Create a X/X green Treefolk creature token, where X is the number of token lands
opponents control.