Vorosh's Quagmire

When Vorosh's Quagmire enters the battlefield, sacrifice it unless you return a
non-Lair land you control to its owner's hand.
{t}: Add {b}, {g}, or {u} to your mana pool.
To restrain Vorosh's power, the strongest warriors, druids, and shamans of Dominaria sealed the dragon
in this mystical, now-forbidden marsh.