Name:Command the Chaff
ManaCost:4 U U
Types:Instant
A:SP$ Play | Optional$ True | Valid$ Card.TargetedPlayerCtrl | ValidTgts$ Opponent | ValidZone$ Sideboard | WithoutManaCost$ True | SubAbility$ DBExile | StackDescription$ SpellDescription | SpellDescription$ Look at target opponent's sideboard. You may cast a card from that sideboard without paying its mana cost.
SVar:DBExile:DB$ChangeZone | Origin$ Stack | Destination$ Exile
Oracle:Look at target opponent's sideboard. You may cast a card from that sideboard without paying its mana cost.\nExile Command the Chaff.