yugioh blue eyes chaos deck Yu-Gi-Oh! - Blue-Eyes MAX Dragon - DUPO-EN048 - Ultra Rare - 1st Edition may be 1st or Unlimited Edition Yu-Gi-Oh! Card LED3-EN000 Blue-Eyes Chaos

I also haven't done this for any other deck, but if you're willing to dish out a few extra bucks I highly recommend picking up Calamity of the Titans, Desecrate Reality, and Not of This World, they're all under $5 each but they are incredible for the deck

C Common Cyber End Dragon X LIGHT Level 10 [ MachineFusionEffect ] ATK 4000 DEF 2800 "Cyber Dragon" + "Cyber Dragon" + "Cyber Dragon" A Fusion Summon of this card can only be done with the above Fusion Materials

The 1999 first edition holographic shadowless Charizard card is one of the rarest and most expensive Pokmon cards in the world, having recently sold for $661.5k earlier this year

Summon Tour Guide From the Underworld & use her effect to summon Fiendish Rhino Warrior, go into Link or XYZ play & send Fiendish Rhino Warrior to the graveyard & use his effeck to send Curse Necrofear to the graveyard, you can also send one of the Drak Spirit's there if you use Cherubini

Leonardo da Vinci is a very strong mono-blue Commander option