CardName: Den of Lost Knowledge
Cost:
Type: Land - Forest Island
Pow/Tgh: /
Rules Text: ({T}: Add {G} or {U} to your mana pool.)
As Den of Lost Knowledge enters the battlefield, you may
reveal a green card and a blue card in your hand. If you
don’t, Den of Lost Knowledge enters the battlefield tapped.
Flavour Text:
Set/Rarity: Terminus Rare
Den of Lost Knowledge
R
Land – Forest Island
(: Add or to your mana pool.) As Den of Lost Knowledge enters the battlefield, you may reveal a green card and a blue card in your hand. If you don’t, Den of Lost Knowledge enters the battlefield tapped.
: Add 
or 
to your mana pool.)