Phyrexian Transformer

Sacrifice X artifacts as Phyrexian Transformer enters play: Phyrexian Transformer enters the battlefield
with X +1/+1 counters on it.
Sacrifice an artifact creature: Phyrexian Transformer gets +X/+X where X is that creature's power.
You opponents can't attack you.
You can't cast nonartifact spells
{p/b}: Put a card from your hand onto the battlefield
Deathtouch, Lifelink