The great news is that vintage Pokmon card values run a wide range based on their rarity, condition, and market demand
After the baby shinies come 12 full art shinies (designated shiny ultra rare), three fantastic illustration rares, five ultra rares (all of them trainers), eight special illustration rares, and six of the brand new style cards, the turquoise-and-gold raised foils here designated hyper rare. Of my very unscientifically small sample size, I scored six ex cards (somehow including three Great Tusk exes, two from the same Elite Trainer Box), three ultra rares (again, two of them the same Judge), four shiny ultra rares, two illustration rares (both the same
Spend this mana only to cast artifact spells or activate abilities of artifacts
If you don't have any untapped/available mana, you cannot cast anything else
Add on top of that evasion, ward, and getting a +1/+1 each time Valgavoth triggers that card draw, and you've got the perfect commander to build a red/black deck around.
This can single-handedly activate a Chain of several Sylvan effects, and may even turn a losing game around