Disciple of the Purger

When Disciple of the Purger enters the battlefield destroy target creature with power 3 or less. If the destroyed creature had a power of 1 or less put that creature onto the battlefield under your control, and that creature gains "this creature cannot attack its owner."
When Disciple of the Purger leaves the battlefield destroy target creature with power 4 or greater.
"It has spoken to me ... the Purger is coming."