You can change pikachu's costume so it can also be a special attacker....but I will tossIf that's Ice Crash Pikachu, toss; bad nature, low HP. You need your attack stat for the special move.
Anyways, I'm lost in the delta episode, I just finished watching that girl break the portal device and she said she was going back to team Aqua's Hide out but she isn't here. Anyone know how to get through this? Widdly_Scuds is resetting Rayquaza, maybe he can answer?
EDIT: Oh and can Rayquaza and Deoxys be re-battled later like Kyogre?