A competitive player will deem a card valuable if its useful for deck-building, has strong/useful moves, and good synergy (aka works well) with their other cards
Its Burning Charge attack is an extremely useful setup attack in the early gamebecause it gets any Energy type, you can use it to power up the multi-Energy attacks on any of Eevees other Evolutions
This helps prevent damage to the card and helps identify your deck in case cards are somehow jumbled on the table, not to mention protecting against the dreaded Cheeto-fingers
Devastating Onslaught (Fracturefoil) Market Price: $159.85 When a card can create multiple tokens of a permanent, odds are there is going to be something ridiculously powerful you can do with them
By casting it, players can deal 2 damage, and by casting another instant with 3 mana value or more, they can cast another, reaching the 4 damage required to give you a card draw during the end step