Here's a list of known Effect.pac IDs used in the moveset files for External GFX IDs.
I didn't check the Pokeball Pokes yet.
Effect.pac
External GFX IDs
01 = Mario
02 = DK
03 = Link
04 = Samus
05 = Yoshi
06 = Kirby
07 = Fox
08 = Pikachu
09 = Luigi
0A = Falcon
0B = Ness
0C = Bowser
0D = Peachy
0E = Zelda
0F = --------------- ?Maybe Sheik(Sheik's effect.pac is nulled)?
10 = Popo
11 = --------------- ?Nana?
12 = Marth
13 = ---------------
14 = Falco
15 = Ganondorf
16 = Wario
17 = Meta Knight
18 = Pit
19 = Zamus
1A = Olimar
1B = Lucas
1C = Diddy
1D = Pokemon Trainer
1E = Charizard
1F = Squirtle
20 = Ivysaur
21 = Dedede
22 = Lucario
23 = Ike
24 = Rob
25 = ----------
26 = Jigglypuff
27 = ----------
28 = ----------
29 = ----------
2A = Toon Link
2B = ----------
2C = ----------
2D = Wolf
2E = ----------
2F = Snake
30 = Sonic
------------------------------------------------------------------
C7 = Knuckle Joe
C9 = Mr. Resetti
CB = Gray Fox
CC = Shadow
CE = Devil
D0 = Metroid
D3 = Starfy
D4 = Tingle
D5 = Kat & Ana
D6 = Lyn
D7 = Custom Robo
D8 = Little Mac
D9 = Soldier
DA = Jeff
DC = Barbara
DD = Issac
DE = Saki
DF = Kururi
E0 = Mario FS
E1 = DK FS
E2 = Link FS
E3 = Toon Link FS
E4 = Samus FS
E5 = Yoshi FS
E6 = Kirby FS
E7 = Fox FS(Falco uses this too)
E8 = Pikachu FS?
E9 = Luigi FS?
EA = Falcon FS?
EB = Ness FS
EC = Bowser FS
ED = Peachy FS
EE = Zelda/Sheik FS
EF = Popo/Nana FS
F0 = Marth FS
F1 = ----------------
F2 = Ganondorf FS
F3 = Wario's FS
F4 = Meta Knight's FS
F5 = Pit's FS
F6 = Zamus FS
F7 = Olimar's FS?
F8 = Lucas FS
F9 = Diddy FS
FA = Pokemon Trainer FS
FB = Dedede FS?
FC = Lucario FS
FD = Ike FS
FE = Rob FS???
FF = Jigglypuff FS
100 = Wolf FS?
101 = Snake FS
102 = Sonic FS
As you may have noticed, there are gaps that WOULD be filled by the effect.pac of the forgotten 7.
I'm willing to bet that the gap between Sonic and the Assist Trophy effects are filled by Stages and SSE bosses.
These were found using PSA, OpenSA2, and Tabuu.
Maybe this can be used?