Rihanna, Barbadian Popstar

Vigilance, deathtouch, lifelink,
When Rihanna, Barbadian Popstar dies exile her,
and then put all creatures in graveyard onto the battlefield.
You may activate each ability only once per turn.
{t}: add {b} or {u} to your mana pool
{2}{b}: target creature gains deathtouch until end
of turn.
{u}: untap target creature.
{u}:tap target creature.