popularity of the Pokemon and the card's design also heavily influences the price
Krang, Utrom Warlord Krang, Utrom Warlord is the bomb card you need for any artifact creature deck
Liberator, Urza's BattlethopterLiberator, Urza's Battlethopter (Helms 1,259 Decks, Rank #497
Garruks Uprising Garruk's Uprising is a sub-$1 green card draw staple thats best for high-powered creature decks like dinosaurs, beasts, and dragons
In some matchps the turn one Aether Vial is the scariest play that is most important to stop, in others the seven mana Karn Liberated, on all the various scary important spells to stop Force of Will offers you the best or near best odds on stopping it
If you overplay them assuming they are a generic answer you will come unstuck in various ways over your games