yugioh how does side deck work in Good cards to update my side deck this format : r/yugioh why does this work :

20 PSA 10 Holographic Shadowless First Edition Chansey: $35,000 Despite not being one of the iconic starters or legendaries, Chansey is still one of the most valuable cards from Pokemon's Base Set

It isn't once per turn and it doesn't have any restrictions

Always wash your hands before touching them to avoid transferring oils or dirt, and consider using card sleeves or top loaders for added protection

Creating Spirit-clones of other creature cards opens up powerful interactions with your tribal buffs, as well as more opportunities for straightforward value from ETB triggers and the like

So there is a delicate balance, and hopefully its one theyll achieve via these starter packs

There are many other types of rarities introduced throughout the series, such as Rare Prime, Rare Holo LV, EX etc that are similar in terms of distribution within a set