Nathria Banquet Hall

Nathria Banquet Hall enters the battlefield
tapped.
When Nathria Banquet Hall enters the battlefield, you may pay 2 life. If you do, scry 1.
{t}: Add {r} to your mana pool.
{2}{r},{t}: Target creature gets -X/-X until end of
turn, where X is the amount of life you've paid
this turn.