Forgot to mention it in my rate, but you could also run latias>amoongus and Celebi> jirachi, to have 2 checks(counters?) to landorus and keldeo. Just puttinf that out there :]
Celebi @Leftovers
Trait: Natural cure
evs: standard SpD
nature: Calm/ Sassy?
- Giga Drain
- Thunder Wave
- Recover
- Psychic/ HP Ice(depending on whether you run psyshock or surf or something on latias)