Aside from a new rule that Riders cannot and will not fight each other outside the Mirror World (for consistency), every aspect of the Rider War is included. So Mirror Monsters, feeding your contract monsters, and teaming is all here. Odin will give out Survive cards to certain riders at some point, but depends on the situation. All Ryuki riders from the show and Abyss are available to be selected, excluding Ryuga and Alternative Zero. The Riders you face off are NOT the characters from the show. Which deck would you pick to give you the greatest chance of victory? Which Rider would you team up with first? I think Zolda is still the best option. No other rider has such long range fighting capabilities like he does. He could've wiped out 3 Riders on the bridge if he wasn't jumped by a Mirror Monster. Be on good terms with Verde, your greatest counter, set up well, and you're golden.