Kazuki, Reborn

Flash, Hexproof, Deathtouch, Vigilance,
Undying (When this permanent is put into a graveyard from the battlefield, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
You may cast this card from you graveyard. Each upkeep, if there are 4 or more Kazuki's in your graveyard, create five 5/5 artifact creatures with Indestructible, and Hexproof named Kaz.
{1}: Remove a +1/+1 counter from this creature.