Menhir of the Indifferent

Coduit (When you cast your first Conduit spell this game, choose a conduit color.)
Whenever you cast a spell of your conduit
color, if Mehir of the Indifferent is
untapped, add {b}. If it's tapped, each
creature you control that's a zombie,
nightmare, or horror gains shroud and
deathtouch this turn.