When Lena enters, create a 1/1 white Soldier creature token for each nontoken creature you control.
Sacrifice Lena: Creatures you control with power less than Lena's power gain indestructible until end of turn.
"Those who do evil and those who do nothing are equally worthy of contempt."
(13/07/2018)
Lena's last ability affects only creatures you control with the appropriate power at the time it resolves. Creatures you begin to control later in the turn won't gain indestructible, and a creature you control whose power increases later in the turn won't lose indestructible.
(13/07/2018)
The number of nontoken creatures you control is counted only as Lena's first ability resolves. If Lena is still on the battlefield (and not somehow a token), it will count itself.
(13/07/2018)
To determine which creatures gain indestructible while resolving Lena's last ability, use Lena's power as it last existed on the battlefield.
