En Verz the Renounced

En Verz is unblockable when attacking a Planeswalker
If a Planeswalker an opponent controls loses Loyalty counters, put that many +1/+1 counters on En Verz
Whenever a Planeswalker dies, you may transform En Verz, if you do put X Loyalty counters on him where X is the amount of +1/+1 counters on En Verz