Wriothesley, Cerberus

Vigilance, ward {3}

When Wriothesley enters the battlefield or attacks,
for each opponent, detain up to one target creature
they control and put a stun counter on it.

Whenever Wriothesley deals combat damage to a
creature with a stun counter on it, you may pay
{w/u}{w/u}{w/u}. If you do, exile that creature.