When you add in time for rolling and wacky effects, Planechase Commander games can take a while, too, so you should probably expect to settle in for a little longer than normal, though some of the new planes really encourage attacking and moving the game along, so maybe less than you might think if you're used to Planechase Commander already
I'd also add Cyber Dragons into the side deck for the Traintrack matchup, along with running Beelze of the Diabolic Dragons
It has a x2 weakness to fighting type Pokemon, no resistance type and a four colorless energy card retreat cost
Changelings count too, and this one even has Titan in its name
Then Mystletainn can grab Phalanx and make a Level 8 Synchro
So, be conscious while choosing the cardstock material for making high-end playing cards