Wanderwine Hub

Land
As Wanderwine Hub enters the battlefield, you may reveal a Merfolk card from your hand. If you don't, Wanderwine Hub enters the battlefield tapped.
{T}: Add {W} or {U} to your mana pool.¹
Below the great river, a bustling hub channels the flow of merrow trade.
Illus. Warren Mahy

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Lorwyn (Rare)