Energy really is important, with most decks typically running at least 8 Energy cards
Theres already been a lot of hype around using Alakazam-EX with Crobat and then finishing off damaged Pokemon with Wobbuffet or M Alakazam-EX
Sacred Foundry on the other hand is one card that can provide different mana on different turns, plus, shock lands are a bit easier to come across, and thus shock lands have more availability
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DUEL LINKS mobile and PC game, which has achieved more than 150 million global downloads since launch, Speed Duel features four basic card types (Monster Cards, Spell Cards, Trap Cards and Skill Cards)
You can find this excellent deal below, but if it says 'out of stock', we recommend giving it a little while to restock