The set numbers make as much sense as a Dali painting.
20TH-JPC10 Stardust Mirage
Normal Trap Card
You can only activate 1 card with this card’s name per turn.
(1) If you control a Level 8 or higher Dragon Synchro Monster: Special Summon as many monsters as possible that were destroyed by battle or an opponent’s effect and sent to your GY this turn.