i'mhaving great trouble with primal dialga, i am a level 36 totodile with a level 36 pikachu

totodile: water gun, aqua tail, dig, ice beam
item: sky blue bow
pikachu: thunder shock, quick attack, thunderbolt, slam (soon to be replaced with discharge)
item: none

treasure bag:
39 geo pebble
apple X4
cheri berry
oran berry X2
heal seed
pure seed
violent seed
x-eye seed
max elixer X4
escape orb X2
luminous orb
raichu hair
and whatever else i pick up in the last ten floors

my basic strategy right now is to peg my x eye seed at him as well as any more if i picked them up, use my violent seed on myself, then pelt him with ice beams, but then he regains sight eventually and kills me cause i need oran berries and reviver seed

if there is any more information people need, don't hesistate to ask
i need as many strategies and basic help as i can
thanks in advance!

the first link is a sos mail to a ok mail geerator, but you canno send out sos mails after the rest
the second link is a wonder mail thingy, but i cannot go back to treasure town due to the fact that it is temporal tower
and the last link is some thread you put up which the only thing that has anythingto do with this thread is the fact that it is mystery dungeon darkness
sorry if you didnt know that, anyone else have any help?

i have beaten dialga, found out i COULD go back to treasure town, so i don't need anything