Safety-first delivery
We use manual delivery principles and security steps (2FA / region-matched connection where applicable) to reduce account risk.
- No “quick bot” approaches.
- Process designed to look natural in-game.
Champion Mastery Boost
- Product Code: LoL
- Availability: In Stock
- 6.48€
Available Options
▾▴
Champion Mastery Boost to desired rank;
XP and another rewards received during the carry.
Account sharing (only login and password);
Before purchase, we recommend you to contact our managers to specify the details of this service.
In League of Legends (LoL), there is a system for assessing the level of play for each champion, called Champion Mastery. It measures a player's progress in battle for the selected champion and compares it to other players who have selected the same champion. In total, there are 7 mastery ranks, for increasing the rank you will receive various rewards. Of course, to reach the maximum rank 7, you will have to spend a lot of time and put in great effort. If you want to avoid that tedious part and just get the rewards you want, you can buy Champion Mastery Boost from ExpCarry. Our experienced boosters are ready to raise the Mastery of the selected champion to the desired rank quickly and with quality assurance.
Champion Mastery Boost ETA:
Depending on desired Mastery rank and additions options, the order lead time for LoL mastery boost can vary from 1 day to 1-2 weeks. Please check this information with the manager.
How does the Champion Mastery carry service work?
- League of Legends mastery boost service is available only with account share. This means that our booster will play on your character to reach the required Mastery level. To start the execution of the order, we will need your account information (only login and password).
- Using the options, you can select the desired boost range for your Mastery rank. Kindly note that each step must be selected.
- You can also include additional options with your order, such as increased priority or stream.
- You can continue to play on your account, but discuss the schedule for our booster in advance. This may increase lead time.
- We can provide you with interim progress reports in the form of screenshots or via stream.
LoL Champion mastery boost rewards:
With an increase in the level of your Champion Mastery, the following rewards will become available to you:
- A unique title based on the champion's class and skill level;
- Mastery loading screen badge;
- Emote and in-game announcement banner;
- Mastery Chests.
The ExpCarry team has extensive experience in providing boosting services and is ready to complete tasks of any complexity. If you did not find the product or service you are interested in, contact the manager in the chat, and we will make a personal offer for you.
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ExpCarry workflow
How it works
ExpCarry orders follow 4 steps: choose a service, checkout securely, track progress, and receive verified results with support.
Choose service → Secure checkout (coupon/cashback if available) → Live progress or scheduled sessions → Results verification + support + rewards.
- Clear scope, included items, delivery format.
- Pick options that match your goal and schedule.
- Fast order confirmation after payment.
- Payment methods depend on your checkout availability.
- Simple statuses: started, in progress, completed.
- Scheduling for time-sensitive steps or sessions.
- Outcome verification and clarification support.
- Rewards and loyalty benefits if applicable.
Trust, clarity, delivery
Why ExpCarry
ExpCarry is built for safe delivery, predictable outcomes, and transparent communication - so you know exactly what happens before, during, and after your order.
Since 2019Established
Consistent service standards across games.
20,000+ ordersDelivered
High volume with controlled quality.
4.9/5 ratingAverage
Customer feedback drives improvements.
Support 24/7Help
Urgent issues handled anytime.
Clear scope before checkout
Each service page states the method, ETA range, and included outcomes, so you can choose the right option without guessing.
- Transparent packages and add-ons.
- Less confusion, fewer revisions.
Accountable specialists
Orders are assigned to vetted specialists and coordinated to keep the delivery aligned with your goal and timeframe.
- Consistency instead of random performers.
- Escalation path if something changes.
Progress visibility
You can follow status updates in your account, and Selfplay sessions are coordinated to match your availability.
- Simple statuses: started → in progress → completed.
- Scheduling for time-sensitive steps.
Policy-backed reliability
Refund and cancellation rules are documented, so expectations are clear for not-started, partial-progress, and completed work cases.
- Clear “what happens if…” answers.
- Less dispute friction.
Secure communication
Payments are handled via checkout, and sensitive details should never be shared in chat unless required by the chosen delivery method.
- Keep order details in official channels.
- Privacy-by-process approach.
Safety
Account & delivery security
Our delivery process follows risk-reduction practices: manual execution, privacy-first communication, and account protection steps where applicable.
Manual-first execution
We prioritize manual gameplay and avoid suspicious automation patterns to keep activity looking natural.
Account protection steps
For account-based methods, we use protective steps like 2FA workflows and region-matched connection where applicable.
Privacy-first communication
We only request information required for the selected delivery method and keep order details in official channels.
Transparency & support
You can follow status updates, ask for clarification, and escalate issues through support if something changes.
Note: Safety practices reduce risk, but no third-party service can guarantee outcomes under game publishers’ evolving rules.