Azor, Unbound

Flying, Forecast-{2}{w/u}{w/u}, reveal Azor, Unbound from your hand, until end of turn opponents cant cast spells during your turn.(Play this ability only during your upkeep and only once each turn.)
Whenever Azor, Unbound attacks, Detain up to 3 nonland permanents.
{1}{w/u}{w/u}, {t}: Draw a card