(Im not sure if this is entirely correct): My favorite thing about that Jeriza support is that this seems to be the only time Byleth has text in a text box in three houses (otherwise its just '...' or text in a selection field) and with that the one insight we really get into Byleth's thoughts in this game is 'Wow... He likes ice cream...'
After seeing caspar’s dad in three hopes, we can see how lindhart was completely lying to us. Even if lindhart was talking about his dad using magic (which it seems he wasn’t) his dad wouldn’t be winning.
When Sylvain says that Dimitri's should watch that temper of his because knocking him on the head would kill him my mind immediately played the cut scene when Dimitri goes insane.