Checking the Pokédex...
“Ash's Pikachu has been offered trades for legendary Pokémon and refused every time.”
Other
19Nosferapti
#11 · Unknown
Piafabec
#13 · Unknown
Pikachu
#14 · Unknown
Potion
#15 · Unknown
Larvibule
#16 · Unknown
Raichu d’Alola
#17 · Unknown
Chelours
#18 · Unknown
Tili
#19 · Unknown
Énergie Électrique
#2 · Unknown
Énergie Psy
#20 · Unknown
Super Ball
#21 · Unknown
Soporifik
#22 · Unknown
Tili
#23 · Unknown
Super Ball
#25 · Unknown
Togedemaru
#26 · Unknown
Pikachu
#29 · Unknown
Raichu d’Alola
#30 · Unknown
Nounourson
#4 · Unknown
Nosferalto
#6 · Unknown