Traptanium Trap

As an additional cost to this card, pay 1 mana of
any color.
When Traptanium Trap enters the battlefield,
choose a Doom Raider planeswalker or creature
card of the chosen color in target opponent's trap
zone. Return that creature or planeswalker to the
battlefield under your control.
When Traptanium Trap is destroyed or the
creature or planeswalker is destroyed, exile
that creature or planeswalker.