Elspeth's Spirit

Cumulative Upkeep—{0}
Whenever you put an age counter on Elspeth's
Spirit, create 1 1/1 Spirit Soldier creature token.
If Elspeth's Spirit has 1 or more age counters on
it, it has Flying.
If Elspeth's Spirit has 4 or more age counters on
it, it has First Strike and Vigilance