@ Lorak: I would think Modest would be better if you want to switch between Origin and Another Form since Giratina has a better special attack movepool and it gets Calm Mind so it can power itself up. Its only noteworthy physical attacks I guess would really be just Outrage and Shadow Force (which isn't worth using).
Another option could be Bold since you could try for one of those 252 hp/252 def/ 6 sp atk or speed Calm Mind things like Suicune.
@ ViVi: I would say 525 (Timid) or 478 (Modest) with Choice Scarf. I think 525 is more common since most Scarf Gengars want to outspeed max speed Deoxys-S.
Anyways, I also have a question of my own lol. I know this was probably answered a while ago but can the new Rotom forms and Giratina Origin Form be used on Wifi?
Another option could be Bold since you could try for one of those 252 hp/252 def/ 6 sp atk or speed Calm Mind things like Suicune.
@ ViVi: I would say 525 (Timid) or 478 (Modest) with Choice Scarf. I think 525 is more common since most Scarf Gengars want to outspeed max speed Deoxys-S.
Anyways, I also have a question of my own lol. I know this was probably answered a while ago but can the new Rotom forms and Giratina Origin Form be used on Wifi?