Citadel of Exegol

Whenever this card is tapped to play a card, you
can leave it tapped permanently to create a 1/1
Strand-cast Token with the effect "Sacrifice this
Token to summon a Being card from your Netherworld. The summoned card starts with its values at 1/1 and regains its stats +1/+1 at the
start of your turn each turn."
{t} Add {b} or {g} to your supply/energy pool
"The hidden redoubt of the Sith, old and new."