Pokemon mystery dungeon explorers of time dialga and primal dialga?

I am trying to beat the two... I have Cyndaquil level 41 and Pikachu level 42. I have the following items: Joy ribbon, heal ribbon, all-mach orb, blast seed, iron thorn (4), one revivor seed, heal seed, stanima band, escape orb, apple, spurn orb, itemizer orb, petrify orb, and the move Dig, although I might get more or less items later. Please help! How do I beat them?