Secret Base

Land -
{T}: Add {C} to your mana pool. <CR>
{T}: Add one mana of any color to your mana pool. Spend this mana only to cast a spell that shares a watermark with Secret Base.

Land -
{T}: Add {C}. <CR>
{T}: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base.