Morzzfang's Unhallowed Texts

Demons you control get +1/+1

Attach any number of white/black humans to Morzzfang's Unhallowed Texts to perform the summoning ritual. Humans that are attached cannot attack or block while they are attached. {b},{w}-attach human (can be done any number of times per turn).
{b}{b}{w}{w}{4},{t}-sacrifice all humans attached to Morzzfang's Unhallowed Texts and summon demons from your library equal to the number of humans sacrificed in the summoning ritual. Demons are s