Vesner, Lord of Bones

Undying(When this creature dies, if it had no
+1/+1 counters on it, return it to the battlefield
under its owner's control with a +1/+1 counter
on it)
Whenever a creature you control is regenerated,
put a +1/+1 counter on that creature, and a
+1/+1 counter on Vesner, Lord of Bones.
Activated abilities of creatures you control cost
{1} less to activate.