Mike reached out to Silver and stroked her on the head, he did the same for Selina and Orin as well before he asked his two newer member if they trusted in him and in their connection to each other though the aura. The Aura was the source of everything, Lucario were naturally more powerful in aura then any other Pokemon but Mike had trained under an Aura master himself. With his connection to both the Aura and his Pokemons aura. He hoped it could be enough to prevent something happening to them.