Apr 20, 2012 -- 6:35PM, Phillipslr wrote:

If I turn Tezzert into a 5/5 Artifact Creature that is still a Planeswalker, and give him undying, does his remain in the graveyard as a Planeswalker or does he return as a 6/6 Artifact Creature?

How to autocard [card]Tezzeret, Agent of Bolas[/card] = Tezzeret, Agent of Bolas

It is as zeratulcraft states.  You get Tezzeret, Agent of Bolas back with 3 loyalty counters and a +1/+1 counter on it.  If you turn him into an artifact and then use his animate ability on himself, then he becomes a 6/6 creature.

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Apr 20, 2012 -- 8:09PM, IamjustnotCreative wrote:

I believe he would come into play as a 6/6 untill the end of turn*, do to Tezzerts effect lasting only to the end of turn.

*he would have his starting loyitally counters as well as a +1/+1 counter on him.

This is incorrect.  It does not enter the battlefield as a creature.  With exceptions when an object changes zones it becomes a new object with no memory of what it was before.  None of the exceptions apply to the animation effect.

Magic: The Gathering Comprehensive Rules

These rules are effective as of February 1, 2012.

400.7. An object that moves from one zone to another becomes a new object with no memory of, or relation to, its previous existence. There are seven exceptions to this rule: