"Ultimate Crystal Magic" Rating Score by プンプン丸

A card with 4000 hit points from this one card is quite strong, but you need to put all 7 types of Crystal Beasts in your Deck.
If you put in 7 different types, you should be prepared to end up with 2 cards in your hand if you lose 1 card in most cases.
Furthermore, it hurts that 7 types of Crystal Beasts are sent to his GY when used once.
The 2nd effect partially compensates for that, but no matter how hard you try, you can only return up to 5 cards, so if you pin it, it will be difficult to activate the 2nd card, and basically all 5 cards. If you line up the Spell / Trap cards on the field, you will not be able to use Spell / Trap cards, and it is unlikely that all Spell / Trap card zones will be empty due to the progress of the duel, so even if you can return only 3 cards at most. If the 2nd effect isn't dependent on the opponent, it's a disappointing effect because it can be used from the 2nd overall reset of 《Rainbow Overdragon》, and it doesn't mesh well...
Overall, both 1 and 2 are powerful effects, but due to the activation conditions and unexpectedly poor engagement, I think you'll feel like you're out of reach when you try to use it.