City of Derrakos

{t}: Add {c} to your mana pool.
{t}: Add any type of mana to your mana pool, use this mana only to cast demon spells.
Sacrifice a creature: The next demon spells you cast cost {b}{r} less to cast, activate this ability only once each turn.
"Demons can be quite noble actually but those from City of Derrakos however". - Kiln Ferren