While it's obviously too early to predict whether that will be the case, it's certainly the right direction for a game that's always looking for a hook for each set - provided Sing Together isn't too powerful, it will once again deepen the game's varied strategies and offer another mode of skill expression
One deck stars Cloud Strife in all his spiky-haired glory as "Cloud, Planet's Champion" (White/Red), while the other showcases the one-winged angel himself, "Sephiroth, Planet's Heir" (Blue/Black)
The larger point, and one that many players expressed in the comments below this post, was that such crossovers existing in the first place is problematic
With scalpers taking a keen interest in the game, suddenly many Collector Boosters and Secret Lair drops became gold dust
Your characters and items will do the heavy lifting, but without actions to support them, you could find yourself facing insurmountable odds, have no cards in your hand, or even be without a decent board state to speak of
This three-cost song can be sung by most of the characters in the deck, allowing you to keep your ink available to play whatever you happen to draw