Mercy System is a feature implemented alongside with Summoning Champion system in Raid Shadow Legends to increase the players chances of getting a specific rarity champion after summoning a bunch of the same shards type. This is to allow them to guarantee to get a champion after summoning a certain threshold of shards if they are unlucky in their gacha summoning session. Visit 2X and 10X Summonning Event Calendar and Guaranteed Champion to know when its the best time to summoned your shards to have higher chances to get better rarity champions!

Mercy System Overview
- The Mercy System applies to Ancient, Void, Sacred, and Primal Shards. Each type has its own counter, so pulling a Champion from one shard type won’t affect the counter for another.
- Whenever you summon an Epic, Legendary, or Mythical Champion, the Mercy counter for that specific rarity and shard type resets, and your chances return to the default rates.
- For Ancient and Void Shards, Epic and Legendary counters are tracked separately. That means summoning a Legendary won’t reset your progress toward an Epic if you’ve already gone 20+ summons without one.
- Primal Shards are unique because they can summon Mythical Champions. They also track counters for both Legendary and Mythical separately:
- After 75 summons without a Legendary, your chance increases by +1% per shard.
- After 200 summons without a Mythical, your chance increases by +10% per shard.
- Sacred Shards trigger Mercy after 12 summons without a Legendary. From the 13th shard onward, your chance of pulling a Legendary rises from the base 6% to 8%. If you still don’t get one, the next shard is 10%, then 12%, and so on — each shard adds +2% directly until you finally summon a Legendary, at which point the rate resets back to 6%.
- Ancient and Void Shards trigger Mercy at different points:
- Epic: After 20 summons without an Epic, chance increases by +2% per shard.
- Legendary: After 200 summons without a Legendary, chance increases by +5% per shard.
Mercy System Summoning Chances
The diagram below displays the chance increment per shard to summon a specific rarity champion.

Mercy System Summoning Details
- Ancient Shards: After 20 summons without an Epic, the chance increases by +2% per shard.
- Ancient Shards: After 200 summons without a Legendary, the chance increases by +5% per shard.
- Void Shards: After 20 summons without an Epic, the chance increases by +2% per shard.
- Void Shardd: After 200 summons without a Legendary, the chance increases by +5% per shard.
- Primal Shards: After 75 summons without a Legendary, the chance increases by +1% per shard.
- Primal Shards: After 200 summons without a Mythical, the chance increases by +10% per shard.
- Sacred Shards: After 12 summons without a Legendary, the chance increases by +2% per shard.
Summoning Shard Chances
The diagram below shows the default chances of summoning a specific rarity champion using a specific shard type.

Summoning Shard Chances Details
- Mystery Shard has a chance to summon Common champion at 74.2%, Uncommon champion at 24.4%, and Rare champion at 1.4%
- Ancient and Void Shard has a chance to summon Rare champion at 91.5%, Epic champion at 8%, and Legendary champion at 0.5%
- Sacred Shard has a chance to summon Epic champion at 94%, and Legendary champion at 6%
- Primal Shard has a chance to summon Rare Champion at 82.5%, Epic champion at 16%, Legendary champion at 1%, and Mythical champion at 0.5%
Why is it nobody talks about the mechanics of everyday things in the game???
Like, what happens if you have Raid Card and you redeem an XP token?
Or, what happens to your multi-battle bonus if you have a positive balance?
Or does the XP token double up if you redeem 2 or more or do they just add days?
These and more just are not addressed anywhere, not even on Raid’s official site!
@ArcU:
When the Mercy System says “+2% per shard”, it means the increase is added directly to the base chance, not taken as 2% of the base chance.
Example with Sacred Shards:
1. The default chance of pulling a Legendary Champion from a Sacred Shard is 6%.
2. If you summon 12 Sacred Shards in a row without a Legendary, the Mercy System kicks in.
3. From the 13th shard onward, your chance becomes 6% + 2% = 8%.
4. If you still don’t get a Legendary, the next shard is 6% + 4% = 10%, then 12%, and so on.
5. So it’s not “2% of 6%” (which would be a tiny 0.12% bump). Instead, it’s a straight additive increase to your odds.
I have a doubt you said something like after 12 summons without a legendary with sacred shard the change increases by 2% per shard… 2 % of what? of the 6% already stablished (this will be a very very minor increase), or instead of 6% legendary drop rate change is increases directly to 8%?
A typo in your description of the Mercy system details for Mythical champs. You wrote that the chance increases by 10% per shard to summon a “Legendary” champ…but I think that should say “Mythical”…right?
But thank you for all of the great information about the game!
@Joseph Garrison: I have updated the typo from Rare to Legendary. Merry Christmas and Happy New Year 2024 to you!
Typo… right at the very end… LEGENDARY champion at 6%