Emerald Mist Sanctum

Emerald Mist Sanctum enters the battlefield
tapped unless you control a land card other
than a Forest.
{t}: Add {g}.
{g}, {t}: Target creature gains hexproof until end
of turn.
{x}{g}, {t}: Search you library for up to X basic
Forest cards and put them onto the battlefield
tapped. Then shuffle your library.