Final answer:
Option (1), With High End Shopping: Tier 3, champions appear in your shop as if you were one level higher, providing access to stronger champions earlier.
Step-by-step explanation:
When you have the High End Shopping : Tier 3 trait in a game, the appearance of champions in your shop changes as if you were one level higher. This means the correct answer to what happens to the appearance of champions in your shop with this trait is: 1) They appear as if you were 1 level higher. This is advantageous as it can potentially give you access to stronger champions earlier than players without this trait.