I think Swordsoul is an easy pick for the Synchro Xyz festival. The idea behind this list was simple, run the Synchro lines from Swordsoul and use reanimation effects to put up Zeus from the rank 4 engine, the Zoodiacs.
The Tenyis still make the cut, even depowered as they are they work too well with the engine to abandon. I'm also running level 4 Tenyis for easy 6 material Zeus lines going second. Baxia and 3 of the Sacred Summit help make this a deck that can solidly break boards while putting up 2-3 interruptions per turn, and still has access to the best Xyz in the format. If you own Dweller or Tornado Dragon you could cut down on Zoodiacs to run more of a toolbox. I actually crafted my Dweller down, and realistically having either a pop or a Zeus is reasonable enough. You try and make synchro plays on the play, and force through Zeus first on the draw (sometimes baiting interruptions on the way). Zeus + Barronne seems to be a good plan in the format.
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