vampire baroness

When Vampire Baroness enters the battlefield if
you gained life that turn, create a treasure token
{t},{2}{b}: Create a 1/1 black bat creature token
with flying.
{t},{w/b}{w/b}{w/b}{w/b}, Exile Vampire Baroness from
your graveyard: create X treasure tokens and gain
X life, where X is the number of bat creature
tokens you control.