Exodia, the Legendary Defender X DARK Level 10 [ SpellcasterEffect ] ATK
Issac gets off to a strong start with Pokemon like Electabuzz and Tauros, while he builds up a Magneton on the bench with which to use the Defender/Selfdestruct combo, which can take out most of your Pokemon with one hit
Once per turn, if you would Tribute a Plant monster you control to activate a "Rikka" card or effect, you can Tribute any 1 face-up monster your opponent controls, even though you do not control it
For this reason, owning a Premium Pass will further boost the frequency with which you are able to farm cards
Some competetive modern budget decks: Modern decks that cost under $5: Those two articles addressed the whole deck question, which is probably the way to go
Shipping prices on eBay fluctuate wildly depending on where the cards are being shipped from