Quick answer
Do not promote Mason just because the button appears. First decide whether you want Mason as a useful UR now, whether you have enough shards to rebuild him after the reset, and whether the timing helps your VS Hero Day scoring.
Promotion requirements
Promotion rules:
- Mason must be 5-star SSR.
- There is no hero-level requirement for promotion.
- Hero level is retained.
- Star rank resets to 3-star UR.
- Skill levels reset to Lv1.
- Skill Medals invested into the SSR version are returned.
- Wall of Honor shards are returned as Mason-specific hero shards.
- Shards originally used to raise the SSR hero from 0→5 stars are not returned.
- The promoted UR can be raised with Mason-specific shards or SSR Universal Hero Shards.
- UR star advancement uses double the shard cost of the original SSR progression.
Check the promotion preview carefully before confirming; your skill and star-level investments may need to be rebuilt.
Plan your shard refund and rebuild
Check your current Wall of Honor level before opening the promotion preview.
Read the Mason shard refund displayed in the promotion preview.
Add the displayed refund to the Mason shards you already have.
Compare the shards available after refund with the cost to rebuild Mason to the UR star level you want.
Keep enough shards in reserve for your next hero upgrade.
If the refund and your spare shards cover the rebuild, you can restore Mason to your target UR star level after promotion.
If you are short on shards, wait or plan to use Mason at a lower star level while you rebuild.
New Wall of Honor breakpoint warning
Check the Wall of Honor for the troop-type bonuses at your current milestone.
Promotion removes the SSR Wall and refunds its shards.
Strategic implication: before promoting Mason, check whether his Wall currently supplies one of those troop-wide milestone bonuses. Promotion may temporarily remove that Tank-wide breakpoint until the returned shards are reassigned/rebuilt.
Treat this as a planning warning, not a claim that promotion is bad.
When should I promote?
Good reasons to promote now
- Mason is still part of the player's meaningful Tank lineup.
- The player can rebuild him to a useful star level immediately.
- The player wants the VS Hero Day shard/skill-medal scoring opportunity.
- The player understands that the old SSR Wall bonus disappears when promoted.
Good reasons to wait
- Mason is already benched behind a stronger UR Tank lineup.
- Rebuilding him would consume resources better spent elsewhere.
- Current Wall milestone bonuses matter more to the player's Tank team than the immediate UR conversion.
- Waiting for a better VS scoring day provides more account value.
VS Hero Day optimization
If you plan to reuse refunded Mason shards, confirm the refund and rebuild requirements shown in your event.
- Invest eligible Mason shards into Wall of Honor.
- Invest Skill Medals into Mason.
- Promote Mason.
- Receive eligible Wall shards and Skill Medals back.
- Reuse the returned resources for UR rebuilding / other hero investment.
Treat this as a scoring optimization, not a promotion requirement.
Mason common mistakes
- Saying Mason must be Hero Lv160. He does not.
- Treating a fixed Wall level as a promotion requirement instead of checking the promotion preview.
- Promoting without planning for the 3-star reset.
- Forgetting that UR star advancement costs more.
- Ignoring the temporary loss of an important Wall of Honor troop-wide breakpoint.
- Treating “UR” as automatically more valuable than every alternative use of the same shards.
