Rampaging Bladetooth

When you cast Rampaging Bladetooth, it enters the battlefield, put a blade counter on up to X other creatures and Rampaging Bladetooth enters the battlefield with X +1/+1 counters.
Trample, shroud
When Rampaging Bladetooth dies or is exiled, choose a creature with a blade counter on it. Exile that creature. Return Rampaging Bladetooth to the battlefield with a number of +1/+1 counters on it equal to the amount it had when it died or was exiled and half the exiled creatures total power and toughness