Aroura of Borealis Order

When Auora of Borealis Order enters the battlefield, chose one each turn.
{p/g}{t}: Each creature gains hexproof or Mence.
{p/b}{t}: Each creature gains lifelink and vigilance.
{p/r}{t}: Each creature gains deathtouch and haste.
{p/u}{t}: Each creature gains flying and flash.
{p/w}{t}: Each creature gains reach and trample.