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Menace (This creature can't be blocked except by two or more creatures.)
'Other Dogs you control get +1/+1.
Whenever this creature attacks, prevent all combat damage that would be dealt this turn to Dogs you control.
Trample Decayed (This creature can't block. When it attacks, sacrifice it at end of combat.) Renew — {X}{B}{B}, Exile this card from your graveyard: Put a decayed counter on each...
'Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) At the beginning of your upkeep, you may search your library for a Rat card, reveal it,...
'{X}: This creature deals X damage to each creature and each player. Spend only black mana on X.
'This creature gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.
Menace
Whenever Rat King or another nontoken creature you control leaves the battlefield, create a 1/1 black Rat creature token.
{2}, Sacrifice a token: Draw a card.
'Swarm of Rats's power is equal to the number of Rats you control.
'This creature can't be blocked. Threshold — Whenever this creature deals combat damage to a player, draw a card. Then discard a card unless there are seven or more cards...
'Swarm of Rats's power is equal to the number of Rats you control.
'This creature enters with a +1/+1 counter on it if you control a permanent with mana value 4 or greater. Whenever you cast a spell with mana value 4 or...
'At the beginning of combat on your turn, if you control another Wolf or Werewolf, put a +1/+1 counter on this creature. When this creature dies, you gain life equal...