Resident Forty-Two's Nightmare

Menace, Deathtouch, Reach
Resident Forty-Two's Nightmare gains +0/+1 for each tapped creature you control.
Tap two creatures: Resident Forty-Two's Nightmare must be blocked this turn if able.
"It took me weeks to extract her correctly. What a marvel, her brutality, her glee... Resident Forty-Two