The murk of the Wanderbrine concealed unseemly rituals designed to bring out the worst in merrowkind.

Inkfathom Witch

Fear
{2UB}: Each unblocked creature becomes 4/1 until end of turn.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
{2}{U}{B}: Each unblocked creature has base power and toughness 4/1 until end of turn.

New Capenna Commander

Enchant creature
Enchanted creature gets +1/+1 for each land you control and has trample.

Planechase Anthology

Planechase 2012

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
{2}{U}{B}: Each unblocked creature becomes 4/1 until end of turn.