brilliant stars booster box sealed pokemon 36 packs Pokémon Brilliant Stars Booster Box (36 Packs) Minor duplication may occur among the common Pokémon TCG Sword & Shield

The most clear example of the difference in timing is counterspells

These are weapons that can be played on the battlefield

SR Super Rare Marincess Wonder Heart X WATER Link 4 [ CyberseLinkEffect ] ATK 2400 DEF - 2+ WATER monsters Once per battle, during damage calculation, if this card battles a monster (Quick Effect): You can Special Summon 1 of your "Marincess" Monster Cards equipped to this card, also this card cannot be destroyed by that battle, and you take no battle damage from that battle

For example, I had a card that I knew was my first trade as a kid and wanted to encapsulate the card to pass down to my kids eventually (I didnt care about the monetary value)