Just noticed this card's effect in YGOPRO seems to be written differently and function differently to the official effect?
Target any number of Set cards in your Spell & Trap Zone; return both this card and those Set cards to the hand
, then you can Set Spells/Traps from your hand equal to the number of cards returned to your hand. You can only activate 1 "Terrible Dust Trunades" per turn.
Target any number of Set cards in your Spell & Trap Zones; return to the hand both this card and as many of those Set cards as possible
, then you can Set Spells/Traps in your hand equal to the number returned to your hand. You can only activate 1 "Twin Dust Trunade" per turn.*
*Sources: https://twitter.com/YuGi...7450632122277895/photo/4 https://yugioh.fandom.com/wiki/Twin_Dust_Trunade
The YGOPro version is missing the "and as many of those Set cards as possible" part. It would presumably mean you should be able to chain a targeted card and still have Twin Dust Tornado resolve and return to the hand alone, rather than fizzle and go to the grave. It doesn't say something like, 'set cards have to be returned (min.1).' Just any which it is possible to return.