The mana cost is daunting, with double white and double blue, but a double striker with prowess ends the game quickly
If this thing was a named legendary creature - even if it was a new version of that weird little rat Loot - it might feel like a mythic rare, purely on the basis that "cute little guys" is an established archetype for extremely rare and powerful creatures
The most valuable Umbreon card in our database is Umbreon from Skyridge, valued at $4999.99
You may have also seen the Pikachu-GX card (regular and oversized), as well as the non-Pokmon-GX Pikachu and Eevee cards
It's free and can heal people and give status effects to enemies, but it can also give status effects to you so outside of the now-infamous final battle, you're generally better off sticking to Paula's Black Magician Girl skills
All MTG cards depend on the context in which they're played, the formats they're available in, and the other cards that help to make them sing