"Rainbow Dragon" Rating Score by とき

Yu-Gi-Oh's first holographic rare. But reprinted in silver rare in half a year...
The pure ultimate Jewel God. Basically, he will be the ultimate jewel god that he aims for with Crystal Beast.
Preparing 7 types of Crystal Beasts in the field and GY is tough, but if it succeeds, 4000 RBIs will pop out without warning. However, Crystal Beast is short in the belt and long in the tasuki, and some cards that are lacking in power as a lower class stand out. Use Sapphire Pegasus and 《Crystal Beacon》to get it ready quickly. If you're in a hurry, you can also use 《Advanced Dark》. The search itself is easy with 《Crystal Master》and Dragon Awakening Melody, so the preparation is still a problem. "Ultimate Crystal Magic" made it easier for him to have 7 types of Crystal Beasts in GY, so I'm grateful for that.
Rather than using the effect, it will be operated as a 4000 hit point with outstanding surprise attack. The effect is deadly summoning sickness, and both of them lose a lot of Crystal Beast's resources, so it's difficult to recover after whiffing. Especially when it comes to mass removal, you get caught up in it too... 　There are times when you end up with unsatisfactory results despite the preliminary preparations.
It can also be used as a material for Rainbow Neos. As mentioned above, it is easy to search, and Neos is also an easy card to search for, so his deck may have more opportunities to play an active role.