That wasn't a question. Are you asking if it is allowed? The answer to that is no, but a lot has been reprinted into FR (via TCoE and MotM) and those are allowed.
Stuff from Strixhaven and Ravnica or any other MTG source specifically aren't allowed in any of the AL campaigns.
Legal race/class choices for the AL Forgotten Realms campaign are from the sources listed in the AL Players Guide (linked below).
•Fizban’s Treasury of Dragons(FTD) •Mordenkainen Presents: Monsters of the Multiverse(MPMM) •Spelljammer: Adventures in Space(SAS)(on August 16, 2022)* •Sword Coast Adventurer’s Guide(SCAG) •Tasha’s Cauldron of Everything(TCE) •Xanathar’s Guide to Everything(XGE) •Additional options as presented in the FAQ
There are also separate campaigns for Ravenloft Misthunters, Eberron, and the Critical Role hardcover as far as I know. These campaigns have their own restrictions in terms of sources for characters. Characters played in these campaigns can't be played in other campaigns (like FR). Each campaign is separate and characters can not change campaigns. If you want to play an Undead Warlock from Van Richten's then you'll need to find someone running the Misthunters campaign where such a character is allowed.
What I mean is using other champaign materiel in current 'FR' campaigns.
Undead Warlock (Ravenloft), and stuff from Strixhaven and Ravnica.
That wasn't a question. Are you asking if it is allowed? The answer to that is no, but a lot has been reprinted into FR (via TCoE and MotM) and those are allowed.
Stuff from Strixhaven and Ravnica or any other MTG source specifically aren't allowed in any of the AL campaigns.
Legal race/class choices for the AL Forgotten Realms campaign are from the sources listed in the AL Players Guide (linked below).
• Fizban’s Treasury of Dragons (FTD)
• Mordenkainen Presents: Monsters of the Multiverse (MPMM)
• Spelljammer: Adventures in Space (SAS) (on August 16, 2022)*
• Sword Coast Adventurer’s Guide (SCAG)
• Tasha’s Cauldron of Everything (TCE)
• Xanathar’s Guide to Everything (XGE)
• Additional options as presented in the FAQ
https://dnd.wizards.com/adventurers-league
https://media.wizards.com/2022/dnd/downloads/DDAL_PlayersGuidev12_1.pdf
There are also separate campaigns for Ravenloft Misthunters, Eberron, and the Critical Role hardcover as far as I know. These campaigns have their own restrictions in terms of sources for characters. Characters played in these campaigns can't be played in other campaigns (like FR). Each campaign is separate and characters can not change campaigns. If you want to play an Undead Warlock from Van Richten's then you'll need to find someone running the Misthunters campaign where such a character is allowed.
So, no way to get Silvery Barbs or Vortex Warp (Strixhaven)
Thanks.