Yu-Gi-Oh! Custom Concepts #1: Energy Cards

I'm taking a break from custom archetypes to show off a new system that could possibly be implemented in a theoretical new Master Rule. Unlike all other Extra Deck types, Energy Cards are not monsters (nor are they Spells or Traps), but they still take up Extra Deck space. This would require players to consider whether monsters or Energy Cards are more important for their core strategy when Deckbuilding.

Auxiliary Typhoon: https://ibb.co/86yzzkw
Book of a New Dawn: https://ibb.co/1Mbv4LK
Different Dimension Slipgate: https://ibb.co/4Td2jbh
Humble Legacy: https://ibb.co/vcS87Ft
Ojamandala: https://ibb.co/ZhtxGD5
Pot of Treachery: https://ibb.co/gPXpmc9
Primal Prediction: https://ibb.co/QDwWmyV
Silence Falls: https://ibb.co/QXwWgkr