Facts
Placement
Plane
New Phyrexia
The Pool of Knowledge, or Knowledge Pool was a torus-shaped vat of Blinkmoth Serum that was used by the vedalken of Mirrodin to mutate their species into further evolution and to bring forth revelations. It was located in the great vedalken capital of Lumengrid, floating above the Blue Lacuna.
To "activate" the pool, one had to drink a vial of serum beforehand.