yugioh unchained deck list BEST (Master Duel Ranked) 3rd Place Unchained Deck Profile!

Temporal Forces Will Launch With New Starter Deck & Build Sets Pokmon TCG: Temporal Forces is also expected to happen alongside two Starter Deck & Build Sets featuring Koraidon ex and Miraidon ex, as these have been confirmed to happen in Japan

As much as I'd love to take the credit for this gloriously lazy idea, it wasn't my discovery

So they do seem to differentiate between marked and altered cards, with the latter basically matching your definition of altered cards

TRADING CARD GAME Gold Pride Chariot Carrie Game Mat, showcasing the dynamic artwork of Gold Pride Chariot Carrie , an upcoming card from this Mays core booster release: Cyberstorm Access

The trigger effect of is improved from the original, destroying all opponent monsters when link summoned and at the end of the damage step, then inflicting damage proportional to the number of link monsters in one's graveyard