Like most Magic: The Gathering cards, the value of Harmonic Sliver depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Time Spiral Remastered)
(Yes, $30 for a piece of cardboard remains ridiculous, but then I just spent way more than that on the Crown Zenith Leafeon VSTAR, so who am I to talk?) Is this a good sign that cards like the Mega Sharpedo ex and Rotom ex SIRs arent going for megabucks
Thats what Rule 0 is there for, anyway
Carth the Lion
In the Pokmon TCG, players use decks of these cards to battle each other, strategically deploying Pokmon, Trainer cards, and Energy cards to overcome their opponents