I think they need to add all of the party gamemodes to friendly battles and keep more gamemodes in the party tab. Modes that could be added to friendly battles are
• Super Card Draft
• 8 Evo slots
•Capture the ___ (could cycle between modes)
They should also keep around party modes like draft, triple draft, 3x, and 7x (Probably nothing crazy, just the OG party modes).