Mind Stealer

Painborn, Agony & Thwart {4} (Counter this spell. Any player may pay this, but they also have to reveal their hand & skips a draw step)
When this enters, gain control of target Non-Aberration creature an opponent controls with a mana cost of 4 or less until this leaves the battlefield or that player pays the ransom.
Ransom- {4} & discard a random card.