Stack Reviver

[ Cyberse / Effect ] 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. ATK/ 100 DEF/ 600