Dwarf Zombie Clan

Virus (Zombie,Black): When this creature
damages another, but a Black Zombie Virus
counter onto it. When a creature with such
a counter on it dies, return it to play under
your control, only as a Black creature with
the Zombie type.
Horde: When this creature would die due
to anything other than -1/-1 counters, put
a -1/-1 counter on it instead.
"Fortifications trapped Dwarves inside"