So, Legend of Solgard has multiple creatures which do something special when used to create barriers, such as Redguard or Raven Master. However, there is something in the refresh algorithm which makes it impossible to have a horizontal match directly created by a refresh. This is causing a handicap against these creatures, since they benefit more from being made into horizontal matches than other creatures do. Is this a bug that you are planning to fix at some point? Maybe there was some excessive tuning on the refresh logic to try and avoid the AI getting even more nutty RNG swings against players in Bounties/Arena etc?
Basically, there is a hidden mechanic which artificially makes those creatures worse, and there is absolutely no in-game documentation telling players that this is the case; that to me feels like a bug.