Keyword: Swampwalk

Multikicker (You may pay an additional any number of times as you cast this spell.)
Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
Quag Vampires enters the battlefield with a +1/+1 counter on it for each time it was kicked.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk, forestwalk (This creature can’t be blocked as long as defending player controls a Swamp or a Forest.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
Whenever a player casts a Goblin spell, you may pay . If you do, you gain 2 life.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
Cycling—Pay 2 life. (Pay 2 life, Discard this card: Draw a card.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
: Regenerate Mire Boa.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
Whenever a player casts a black spell, you gain 1 life.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
Sacrifice Sewerdreg: Exile target card from a graveyard.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
As long as Filth is in your graveyard and you control a Swamp, creatures you control have swampwalk.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
When Slithery Stalker enters the battlefield, exile target green or white creature an opponent controls.
When Slithery Stalker leaves the battlefield, return the exiled card to the battlefield under its owner’s control.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
: Target black creature gets -2/-0 until end of turn.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)
: Whispering Shade gets +1/+1 until end of turn.

Swampwalk (This creature can’t be blocked as long as defending player controls a Swamp.)