Double Dust Tornado Twins (POTE-EN080) - Power of the Elements Unlimited

Target any number of Set cards in your Spell & Trap Zone; return this card to the hand, along with as many of those Set cards as possible (min. 1), then you can Set Spells/Traps from your hand equal to the number of cards returned to your hand by this effect. You can only activate 1 "Double Dust Tornado Twins" per turn.