CB135C68 KSoniaSwordProgression // 0 = None Shown, 1 = Cobalion Shown, 2 = Terrakion Shown, 4 = Virizion Shown
A097DE31 KKeldeoInOverworld // Bool1 = Spawned, Bool2 = Not Spawned
1895E693 KSpiritombInOverworld // Bool1 = Spawned, Bool2 = Not Spawned
It appears that one can't just change KPlayersInteractedOnline to 32 and let Spritomb spawn, 1895E693 must be changed as well.
Search terms: Spiritomb, Keldeo, KPlayersInteractedOnline