I have tested multiple times with Kelamne.
When matched, either by swap or other, Sunforger is supposed to fetch the first red or white spell from your library and give it full mana. This ability is NOT working at all.
It also gives a buff to your first creature. This feature is working.
Hello @Theophilus,
Thank you for all the information provided, this issue will be investigated!
If you have any additional information that you consider relevant, please don’t hesitate to send me 
Rebeca.
@Oktagon_Support The recent data push fixed this issue. Thank you!
Hi @Theophilus, thanks for letting me know!