Crystron Quandax

Level 4 WATER/Machine Synchro Tuner Monster
1800 ATK / 2000 DEF

1 Tuner + 1+ non-Tuner monsters
Once per Chain, during your opponent's Main or Battle Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon 1 Synchro Monster, using materials including this card you control. If this Synchro Summoned card is destroyed by battle or card effect: You can target 1 "Crystron" monster in your GY, except a Synchro Monster; Special Summon it.

Rulings – Yugipedia

Printings:

Invasion: Vengeance: INOV-EN044 (Ultra Rare) - 2016-11-03
Battles of Legend: Relentless Revenge: BLRR-EN083 (Secret Rare) - 2018-06-28

Prices:

Cardmarket: 1.11 €
TCGplayer: $ 1.07