Monastary of Spells

Monastary of Spells enters the battlefield tapped.
{t}: add {w}, {u}, or {r}, spend this mana only to cast instant or sorcery spells.
{t}: add {w}, {u}, or {r} for each instant or sorcery spell you cast this turn.
Monks spend their life training with djinns here,
to prepare to save the sacred texts.