Suspicious Bookcase
Artifact Creature — Wall
Defender
, 
: Target creature can't be blocked this turn.
Survivors hungry for knowledge sometimes find, to their surprise, that knowledge is hungry for survivors.
Tyler Walpole
Rulings
Activating Suspicious Bookcase's ability after a creature has become blocked won't cause that creature to become unblocked.
(wotc • 2018-07-13)
Rulings
Activating Suspicious Bookcase's ability after a creature has become blocked won't cause that creature to become unblocked.
(wotc • 2018-07-13)