thanks for the reply fatty.
Regarding your advice, it's true that replacing Dialga with Lugia would help the team by reducing its ground and fighting weaknesses. Lugia is a great wall and I also have a dual screener set that I want to try*out. Unfortunately, as I said before this is a bulky offense team, not a stall or even a balance team, so Lugia is kinda out of place. I might still try it later. Oh and for the ground weakness you mentioned, it's true that CB Groudon can 2HKO everyone on my team, but at the same time, Dialga, Mewtwo and Palkia can outspeed and OHKO while Kyogre can survive an EQ (without spikes or SR) and can KO back. It also speed ties with it since most CB Groudon run only 4 Speed EVs. Choice band Garchomp on the other hand is even less dangerous since he only do an average of 46% on my Arceus (not a 2HKO with SR thanks to lefties). Anyways, I have never even seen CB Groudon and Garchomp on the ladder, but I understand I still need to be prepare for them.