Quick Answer
For the June 14 merchant rotation, prioritize rare limited items first, then training keys, then eggs and breeding materials only when you have a clear goal. Check the current Merchant rotation first, then use the Items page to confirm what each item is used for.
Current Rotation
This rotation includes Broken Mirror, Qualification Key, Ability Key, Dark Star Ball, Mysterious Egg, Prism Ball, Black Crystal Glaze, and Grass Bloodline Elixir. Prices range from 1,000 to 3,200,000, so do not buy everything just because it is limited.
Priority 1: Expensive Rare Items
Prism Ball is the most expensive item and limited to one. Buy it only if you are already in mid-to-late progression and need high-value capture resources. Broken Mirror is also limited to one and is easier to fit into the budget, but beginners should avoid spending all RocoBucks just because an item looks rare.
Priority 2: Training Keys
Qualification Key and Ability Key are better when you already know which core spirits you are building. If your team is still changing often, save your currency until your plan is clearer. Use the Spirit Training Roadmap before spending key resources on temporary spirits.
Priority 3: Eggs and Bloodline Items
Mysterious Eggs are reasonable if you want Pokedex progress, breeding attempts, or extra spirit rolls. Grass Bloodline Elixir is more situational and should be bought only when you are building a grass-type line. Before breeding, check compatibility with the Egg Group Matcher, then use the Egg Predictor once you have egg data.
Low-Cost Materials
Dark Star Ball and Black Crystal Glaze are cheap with high purchase limits. Buy them when you have a real shortage; otherwise, do not drain your budget just to clear the shop.
Beginner Buying Order
Under 1 million RocoBucks: buy only the key or egg you need now. Between 1 and 4 million: consider Broken Mirror and keys first. With plenty of currency: buy one-per-rotation rare items first, then fill training and breeding materials.
Common Mistakes
Buying every limited item: a limit is not the same as value.
Looking only at price: cheap items still consume budget over time, while expensive items are bad buys if you will not use them soon.
Ignoring refresh timing: check the current rotation and next refresh before deciding whether to buy immediately.
Recommended Flow
Check the merchant module, confirm item usage on the item database, then spend currency on items that are limited, useful soon, and hard to replace.