Flint Coalwood, Ace Detective

Flint Coalwood, Ace Detective enters the battlefield tapped and doesn't untap during
your untap step as long as your opponent controls creatures with suspect counters on them.
When Flint Coalwood, Ace Detective enters the battlefield, put a suspect counter on
each tapped creature target opponent controls.
Creatures with suspect counters on them can't
attack or block and lose all abilities.