But I don't think an Amethyst/Sapphire bounce deck will be viable
Because damage remains marked on a creature until damage is removed as the turn ends, damage previously dealt to a creature with indestructible may cause it to be destroyed if Shay Cormac's first ability resolves later during that turn
On creatures that permanently have the ability, usually there's a pretty sizable mana increasebut don't let that trick you

Here are the top valued cards of Pokmon TCG: Scarlet & Violet Paradox Rift with market values observed on TCGPlayer as of this writing: Groudon Illustration Rare 199/182: $71.88 Altaria ex Special Illustration Rare 253/182: $40.52 Roaring Moon ex Special Illustration Rare 251/182: $38.59 Garchomp ex Special Illustration Rare 245/182: $26.29 Steelix Illustration Rare 208/182: $23.70 Gholdengo ex Special Illustration Rare 252/182: $23.30 Iron Valiant ex Special Illustration Rare 249/182: $21.34 Plusle Illustration Rare 193/182: $20.97 Minun Illustration Rare 194/182: $20.17 Morpeko Illustration Rare 206/182: $19.17 Yveltal Illustration Rare 205/182: $16.49 Golisopod ex Special Illustration Rare 246/182: $16.43 Iron Hands ex Special Illustration Rare 248/182: $15.21 Tapu Koko ex Special Illustration Rare 247/182: $15.08 Mantyke Illustration Rare 209/182: $13.38 Groudon Illustration Rare's value remained strong and steady this month, just like the Legendary Ground-type depicted in the artwork

These results are pulled from Sealed and Draft matches and can help you decide what cards are most valuable in the next limited event you participate in
Despite its power level, non-foil copies from Stronghold or The List are surprisingly accessible, hovering around the $6 to $9 mark