Thanks to discerning challenger eyes, it has been brought to our attention that there was an error in the rule set! Team Preview cannot be turned off, and thus will not be required to be turned off (of course). We apologize for this oversight (our planning committee inserted that provisionally before X and Y came out).
Additionally, due to cries of unfair treatment from the Wormadam lobby, the Meowstic exception to the species rule has been revoked. Sorry, Meowstic lovers!