Diamrem

Infect, hive mind, protection from creatures with
Charm counters.
Once per turn, you may have Diamrem get
+3/+0 until end of turn.
Whenever Diamrem deals damage to a creature,
put a Charm counter on that creature for as long
as it has a -1/-1 counter on it.
At the beginning of your upkeep, each creature
with a charm counter on it gets a -1/-1 counter.
You control creatures with Charm counters and
3 -1/-1 counters.
Its rotting odor disgusts the nose but entrances the mind