Pretty much unstoppable
Very good salac berry user because of prankster
Stealth rock and ice weakness
Sets up on groudon switch out
Sets up on ho-oh especially in rain
Doesn't need salac boost to sweep
move 1: Substitute
move 2: Nasty Plot
move 3: Thunder/Thunderbolt
move 4: Hidden Power Ice/Focus Blast
item: salac berry
EVs: 252 SAtk / 4 SDef / 252 Spd
Boltbeam is very good, although dialga, ferrothorn, excadrill, gastrodon, and arceus electric beat it.
All counters are grounded, so spikes (ferrothorn/forretress) are good partners. The latter can remove stealth rocks and help against extreme killer
Ghostceus and kyogre are good partners to keep thunder accurate and take care of extreme killer
Thunder is for rain, although thunderbolt is usually enough at +2
Focus blast helps against a lot of checks/counters but dropping HP ice is very costly with misses and such.
Great because at +1 speed genesect, palkia, terrakion can't outspeed
um none. Maybe focus blast should go here?
[Checks and Counters]
Two types: HP ice counters and focus blast counters
HP ice: dialga/ferrothorn/rock slide SpD excadrill/arceus electric/gastrodon
Focus Blast: Zekrom/latios/latias (better than HP ice although they annoy that too)/Arceus electric/groundceus(better)/grasseus(better)/dragonceus(better)
Test team if you want my shitty team: Kyogre/Arceus Ghost/Thundurus/Forretress/Rayquaza/Landorus-T