This exclusivity, combined with many copies of the card becoming unplayable through warping (due to being a foil-only), lead many to become totally disenfranchised with mechanically unique promos in competitive play
30th Anniversary Card Sets (October 16, 2026) According to PokGuardian, 10 Card Set products will release on October 16, 2026 one month after the main booster set
Tarkir: Dragonstorm is available now online, at select retailers, or you can find it at your local game stores
Would summoning a Fusion Monster not be more appropriate given the only printed Synchro Red-Eyes and Blue-Eyes have between them is Blue-Eyes Spirit Dragon, and they both rely heavily on Fusion
As for the other Collectors Rare, Lightning Storm, Reinforcement of the Army, and Rivalry of Warlords are good rarity bumps