OK, acabei de encontrar uma resposta oficial à minha pergunta em
Luck Blade and Wish Guidance
Wish is a potent spell that can result in a wide variety of interpretations. DMs have discretion on the adjudication of wish spells, but players should be forewarned that other DMs may rule differently; some may disallow some effects of their wish. For example, if a character wishes to be a Masked Lord of Waterdeep, one DM may accommodate that and consider it in the character’s adventures, but another DM may not.
Characters in the Adventurers League have two additional options to choose from when casting a wish spell by using the luck blade found in this adventure:
- Magic Items: A character may wish for a single item appropriate for their tier (Tier 1: uncommon, Tier 2: rare or uncommon, Tier 3: very rare, rare, or uncommon) of their choice from the Dungeon Master’s Guide or Dungeon Master’s Basic Rules. The magic item is awarded to the character making the wish and can’t be traded even if the character possesses campaign documentation that allows the trade of uncerted items.
- Ability Score Increase: A character wishing for an increase to their ability scores may add +2 to one ability score, or +1 to two different ability scores. A feat may be chosen as a substitute for the ability score increase, as normal.