Aryadne, Shattered Soul

Deathtouch, lifelink
When Aryadne, Shattered Soul enters the battlefield, you may pay half your life total (rounded up). If you do, destroy all creatures
with power 5 or greater. Then, gain control of each other creature with power 4 or less for as long as you control Aryadne, Shattered Soul.
Will can be broken. Souls can be reforged.