"AI can't play these cards well"

Hi, the message "AI can't play these cards well" - how can I make Forge to only chose "compliant" cards for the AI? Maybe there are specific sets to choose from? I'm guessing AI is in a big disadvantage otherwise...
High Quality Resources for Collectible Card Games
https://www.slightlymagic.net/forum/
https://www.slightlymagic.net/forum/viewtopic.php?f=26&t=15009