"Night Assailant" Rating Score by プンプン丸

If it is unlimited, it will be an infinite hand cost, so unless you add "Name Turn 1", it will remain a limit.
It may be difficult to understand the advantage of infinite hand cost if you think about normal beatdown, but if you can do a loop combo, the final destination will be
[Special Victory (Exo)] [Burn] [Deck Destruction].
For example, 《Cannon Soldier》and 《Phoenixian Cluster Amaryllis》are prohibited.
These are strongly supported by a large number of "Draw Cards", and those cards come with 《Hand Destruction》, 《Dark World Dealings》, or [Hand Cost]. "These cards have a [hand cost], so they are well balanced, and I completely understand what will happen if the concept of [hand cost] is broken." This kind of card is forever restricted unless it becomes an errata. "That's why Sinister Serpent is also errataed."
Added on March 16, 2022: I thought it would be errataed, but it's kind of lax for Konami not to add "Name Turn 1", well, unless there's something really serious, it won't be abused. Sure, but if you don't add "Name Turn 1", you'll feel uneasy. If you're going to say impossible quibbles, you can turn around Monster Reincarnation and Magical Stone Excavation. I think it's safer to add "Turn 1". Well, according to the flow of "Dewloren, Tiger King of the Ice Barrier", it will be unlimited, but I don't understand why it would be better if it was unlimited, but it would be gradually reduced from limit → semi-restriction → unlimited.