Clearing each stage for the first time will net you Player EXP, Pack Hourglasses, and Shop Tickets, and there are also Battle Tasks and challenges tied to each stage for extra rewards
For instance, Arid Mesa can be sacrificed to search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle. While this can be used for basic lands of the stated types, it can also be used to fetch nonbasic lands with the given types
The ninjutsu mechanic is also perfect since you need a creature to go unblocked to activate it
Top chase cards include Noivern #74, Duraludon #76, Golurk #70, Raihan #77, Schoolgirl #78, Suicune #68
If I had to mention his weaknesses, it would be the lack of firepower after the middle stage, and how much Trap you can keep with this card is the key, so if Harpie, Lightning Vortex, or any other Spell Trap card is removed, he would be quite weak
Why It's Special The cards rarity and desirability are reflected in its auction value, with one example selling for $5,300