First, it's 10/10 for 10 mana that exiles two permanents as soon as it's cast
Eye of Nidhogg Transforms creatures into a dragon
You waste the rest of the functionality in doing so and could just be using a cheap card like Plunge into Darkness for the same effect but that is missing the point
This deck leans the furthest into the space of primarily playing as a fair deck of any discussed here while including an Oops, I win! reanimation package
One copy of Espathra ex (Paldean Fates) is also included for an additional source of damage and disruption, as well as for securing 2-hit knockouts on Grass weak Pokemon like Charizard ex (Obsidian Flames), but should not be relied on otherwise
But in decks with more flamboyant mana bases, its too unwieldy to rely upon consistently, especially if your deck lacks the smoothing effect of green