It has SD arceus grass with z bullet seed eq and rock slide for yvetal and ho-oh, specs kyurem for zygarde ceelsteela etc, phs def giritina, sp.def toxic groudon, LO fast taunt yvetal  and sp.def mag, marshadow is a bit troublesome.  the magearna spread is tweaked a bit the 104 speed basically makes it so that if mag steals the geomancy boost from xern, it ouspeeds jolly marshadow by 1 point. have fun. btw mo helped with this too :]]]

+2 252 Atk Arceus-Grass Bloom Doom (140 BP) vs. 248 HP / 8 Def Groudon-Primal: 285-336 (70.7 - 83.3%) -- guaranteed 2HKO
+2 252 Atk Arceus-Grass Earthquake vs. 248 HP / 8 Def Groudon-Primal: 272-322 (67.4 - 79.9%) -- guaranteed 2HKO
252 Atk Arceus-Grass Rock Slide vs. 252 HP / 204+ Def Ho-Oh: 248-296 (59.6 - 71.1%) -- guaranteed 2HKO after Leftovers recovery
0 Atk Ho-Oh Brave Bird vs. 4 HP / 0 Def Arceus-Grass: 278-330 (72.7 - 86.3%) -- guaranteed 2HKO
252 SpA Choice Specs Turboblaze Kyurem-White Fusion Flare vs. 252 HP / 4 SpD Celesteela: 396-466 (99.4 - 117%) -- 93.8% chance to OHKO
0 Atk Celesteela Heavy Slam (80 BP) vs. 0 HP / 4 Def Kyurem-White: 188-224 (48 - 57.2%) -- 92.6% chance to 2HKO