You can target 1 monster you control with "Guardian" in its original name, that cannot be Normal Summoned/Set; it can make a second attack during each Battle Phase this turn. You can banish this card from your GY, then target 1 "Guardian" monster in your GY that cannot be Normal Summoned/Set, and activate 1 of these effects;
Add it to your hand.
Add 1 other card that is mentioned on that monster from your GY to your hand.
You can only use each effect of "Principug" once per turn.