Elena, Defender of Gavony

Flying, vigilance
Whenever Elena, Defender of Gavony attacks,
put three 1/1 white Human Soldier creature tokens onto the battlefield tapped and attacking. Exile them at the end of combat.
"Ever since the angels were destroyed, Innistrad has needed a new protector. And that is why we, the diamond league, were assembled. I am the sole angel left, but I will protect the plane with my life."