Cannot be Normal Summoned/Set. Must be Special Summoned by the following effect. If the effect activation of a monster you control is negated (except during the Damage Step): You can Special Summon this card from your hand. When this card is Special Summoned: You can target 1 Level 4 or lower Cyberse monster in your GY; Special Summon it. You can only use this effect of "Striping Partner" once per turn.