The one major downside is that one of the promo cards is an oversized version of the regular Zapdos ex, so it takes up a fair bit of space
If your opponents Active Pokemon is a Basic Pokemon, it cant attack during your opponents next turn
Black Market Connections Black decks tend to have access to lifegain and usually have no problem making these connections shine
But beyond their monetary value, it's the history, the rarity, and the emotion that make these cards so special
You can sacrifice a high-power creature, generate a massive burst of mana, and then dump it into his second ability, paying six generic mana to play the top card of your opponents libraries for free
It would make more sense to have more tutors for artifacts in decks instead, since a tutor for artifacts can search for both Vehicles as well as other types of artifacts (hint: Boommobile can combo off with two other artifacts Cogwork Assembler and Panharmonicon)