During each standby phase, you have to detach one XYZ material from this card, or take 2000 points of damage
Not only is this a great way of reusing your best monsters, but this also sets you up perfectly to ritual summon some powerful high-level monsters too
This is unusual for Pokemon TCG sealed product and reflects the combination of falling box prices and rising competitive staple values
It's very defensive in nature and stronger in grind games, attempting to gather as many resources as it can for a big attack at the end, mainly through the trap Melffy Playhouse, which can bounce most of your opponents field and increase your Xyz Monsters' ATK to ludicrous levels for a final OTK
Reasons to draw more cards would be to get a basic Pokemon or energy, get a evolution card of a Pokemon you have in play, or to get a special trainer or supporter card you need extremely bad