What does Persistent Marshstalker do?
user
Persistent Marshstalker gets +1/+0 for each other Rat you control.\nThreshold — Whenever you attack with one or more Rats, if seven or more cards are in your graveyard, you may pay {2}{B}. If you do, return Persistent Marshstalker from your graveyard to the battlefield tapped and attacking.
assistant