If a creature has a P/T of /, but is not the battlefield, What is it's P/T with regards to effects that care about P/T such as wild pair and Varolz, the Scar-Striped

If I used Varolz, the Scar-Striped to scavenge a boneyard wurm, and I have X creatures in my graveyard, Do I get 0 counters or do I get X counters?