Stack Reviver (Starfoil) [SP18-EN005] Starfoil Rare

If this card is used as material for a Link Summon: You can target 1 other Level 4 or lower Cyberse monster in your GY, that was used as material for that Link Summon; Special Summon it in Defense Position. You can only use this effect of "Stack Reviver" once per Duel.