Legion of holy stray dogs

If this card is Special Summoned and during each of your Standby Phases, you can put 1 " Holy tracking Counter" on this monster. This monster gains 500 ATK for each " Holy tracking Counter" on it. You can remove any number of " Holy tracking Counter" on this monster and target an equal number of cards in any GY;add these targeted cards to your hand. If this card is destroyed and sent to the Graveyard, you can target 1 card in any Graveyard, except this monster;shuffle both this monster and the targeted card into the decks. You can only use each effect of "Legion of holy stray dogs" once per turn.