Thief of Blood
Creature — Vampire
Flying
As this creature enters, remove all counters from all permanents. This creature enters with a +1/+1 counter on it for each counter removed this way.
Her hunger will not be denied.
Cynthia Sheppard
Commander 2015 (C15)
• #22Rulings
If more than one Thief of Blood enters the battlefield at the same time, you can apply the replacement effect of any of them. That one will enter with additional +1/+1 counters due to its own ability and the others will not.
(wotc • 2015-11-04)
Experience counters aren't removed from players this way, but loyalty counters are removed from planeswalkers.
(wotc • 2015-11-04)
Rulings
If more than one Thief of Blood enters the battlefield at the same time, you can apply the replacement effect of any of them. That one will enter with additional +1/+1 counters due to its own ability and the others will not.
(wotc • 2015-11-04)
Experience counters aren't removed from players this way, but loyalty counters are removed from planeswalkers.
(wotc • 2015-11-04)