Keyword: Fear

Affinity for Swamps (This spell costs less to cast for each Swamp you control.)
Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
At the beginning of your upkeep, you may move a +1/+1 counter from target creature onto Arcbound Fiend.
Modular 3 (This creature enters with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)
Whenever Guiltfeeder attacks and isn’t blocked, defending player loses 1 life for each card in their graveyard.

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)

Fear (This creature can’t be blocked except by artifact creatures and/or black creatures.)