Nausicaa's Laboratory

Nausicaa's Laboratory is a Secret Garden.
All Swamps you control may tap
for either one Black or one Green mana.
{t} Add {b} or {g}
Sacrifice Nausicaa's Laboratory, gain 5 life.
"I irrigated this chamber using water drawn from
deep underneath the castle windmill...
I found if clean water is used the plants
arent poisonous.."- Princess Nausicaa.