Your search for "erdwal illuminator 104" revealed the following:
Erdwal Illuminator (MKC) from Murders at Karlov Manor Commander, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Erikas Perl Card Text:FlyingWhenever you investigate for the first time each turn, investigate an additional time.
Erdwal Illuminator (SOI) from Shadows over Innistrad, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Seb McKinnon Card Text:FlyingWhenever you investigate for the first time each turn, investigate an additional time.
Erdwal Illuminator (Foil) (SOI) from Shadows over Innistrad, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Seb McKinnon Card Text:FlyingWhenever you investigate for the first time each turn, investigate an additional time.
Erdwal Illuminator (J22) from Jumpstart 2022, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Seb McKinnon Card Text:FlyingWhenever you investigate for the first time each turn, investigate an additional time.