Think about Runeclaw Bear and Reach Through Mists stapled together, so you get to have both effects while only costing one card out of your hand
Shellshock acts as both removal and a resource generator, making it a high-value inclusion for any Red deck that cares about artifact synergy or the new Disappear triggers
However, as anyone who buys physical Pokmon booster packs knows, code cards found in packs can be redeemed in-game for digital boosters, so there is the option for players to throw down cash in order to flesh out their collections faster than regular gameplay would naturally allow
We may not be able to answer questions after purchase
From trigger doublers like Cloud, Midgar Mercenary to token decks like Baylen the Haymaker, tons of popular Commanders can maximize this card
Turn 1 : You cast Old Fogey