Gilkuza

Deathtouch
{3}{b}{b}: Destroy target creature. Put a -1/-1
counter on this creature.
When this creature dies return it to the battlefield
transformed with a +1/+1 counter on it for each
-1/-1 counter that was on Gilkuza.

Gilkuza is not an undead or zombie dragon, but just
appears to be because of its flesh being so thin,
making all the bones in its body appear vividly.