Temple to Jorvahl

Temple to Jorvahl enters the battlefield
tapped.
{t}: Add {w} or {u} to your mana pool.
{w}{w}{u}{u}, {t}: Until end of turn, Temple to
Jorvahl gains "Whenever you cast a noncreature
spell, tap target creature an opponent controls.
That creature doesn't untap during its
controller's next untap step."
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