Arkharnen, Lord of the Hills

Indestructible, trample, reach
{t}: Add {w}, {r}. or {g}.
When Arkharnen, Lord of the Hills enters the battlefield, you may search your library for up to
one forest, up to two plains, and up to three mountains. Put those cards onto the battlefield
tapped. Lands you control have "{t}: Add two
mana of any combination of colours to
your mana pool."