Olashk, dark legend

when Olashk, dark legend enters the battle field you may loose 4 life,
if you do you get {e}{e}{e}{e}{e}. when Olashk dark legend attacks
you may pay {e}{e}{e} and create a
2/2 black dragon creature token with flying and death touch
when Olashk dark legend blocks you may pay {e}{e}{e}{e}{e} and create 7/7 black with trample