yugioh card list and prices Yu-Gi-Oh! Value Boxes Top 100 Most Valuable Yu-Gi-Oh

This is where you could open Ghidorah, Mothra, or Bioquartz Spacegodzilla

The second chunk are all the potential Fling targets that I found, although using many of them would have resulted in a rather different looking deck

1 Sunscorch Regent

Sol Rings are easy to come by buy usually maintain a price of around $2-3 Cheaper cards like Worn Powerstone ($0.50) and Palladium Myr ($0.50) do a fine impression, though theyre obviously slower and more balanced

But if support for older decks is what you're looking for, Blue comes in clutch with his reverse Giovanni effect, an excellent addition to Venusaur (and many other) decks