can you use speed duel cards in normal yugioh Yu-Gi-Oh! - Duel: Streets of Battle City Why can't regular Yu-Gi-Oh cards

This Adventure comes at a hefty cost, and most decks wont want it

Wellspring Mask Ogerpon ex #213 Special Illustration Rare The first card to make the list of the most expensive cards from Twilight Masquerade is the Wellspring Mask Ogerpon ex Special Illustration Rare #213

The downward trajectory of the value of rare and highly prized Pokmon cards is on full display on price charting sites such as pricecharting.com, where for example, it can be seen that a PSA 9 1st edition Holographic Blastoise card from the Base Set which in February 2021, would have cost a collector a little over $8,000, has a value today of $3,750

Abyssal Harvester is worth noting as another demon to pair with Unholy Annex, but I think not having decent stats or a powerful enter the battlefield ability make it just not good enough

The indestructibility makes your board immune to most conventional board wipes