Do note that this list is for CN server. SEA will be different because we did not have quite a few SSRs. MB was in paid packs, and DK, Suiryu, Hellfire were in HBU. CN also apparently started their comeback earlier by 1 month (from my sources).
| MTH-YR | LSSR | Comeback |
| Jul-19 | Boros | – |
| Aug-19 | King | – |
| Sep-19 | Metal Bat | Boros |
| Oct-19 | Metal Knight | King |
| Nov-19 | Silverfang | Metal Bat |
| Dec-19 | ZBM | Metal Knight |
| Jan-20 | Garou | Silverfang |
| Feb-20 | Flashy Flash | ZBM |
| Mar-20 | Gouketsu | Garou |
| Apr-20 | Phoenix Man | Flashy Flash |
| May-20 | Gyoro Gyoro | Gouketsu |
| Jun-20 | SSR Genos | Phoenix Man |
| Jul-20 | RMG | Gyoro Gyoro |
| Aug-20 | Watchdogman | SSR Genos |
| Sep-20 | Awaken TT | RMG |
| Oct-20 | SSR Amai | Watchdogman |
| Nov-20 | Drive Knight | Awaken TT |
| Dec-20 | Bomb | SSR Amai |
| Jan-21 | Suiryu | Drive Knight |
| Feb-21 | Awaken Sonic | Bomb |
| Mar-21 | Awaken VM | Suiryu |
| Apr-21 | Gale Wind | Awaken Sonic |
| May-21 | Hellfire Flame | Awaken VM |
| Jun-21 | New! SSR+ Awaken CE Awaken Bakuzan | Gale Wind |
| Jul-21 | SSR+ Awaken Boros | Hellfire Flame |
| Aug-21 | SSR+ Awaken CK | SSR+ Awaken CE |
| Sep-21 | SSR+ Awaken Metal Bat | SSR+ Awaken Boros |
| Oct-21 | SSR+ Awaken King | SSR+ Awaken CK |
| Nov-21 | SSR+ Geryu | SSR+ Awaken MB |
| Dec-21 | SSR+ Extreme Silverfang | SSR+ Awaken King |
| Jan-22 | SSR+ Unparalleled Atomic Samurai | SSR+ Geryu |
| Feb-22 | SSR+ Extreme Garou | SSR+ SF |
| Mar-22 | SSR+ Awakened Phoenix Man | SSR+ AS |
| Apr-22 | SSR+ Extreme Gouketsu | SSR+ Garou |
| May-22 | SSR+ Unparalleled Flashy Flash | SSR+ PXM |
| Jun-22 | SSR+ Awakened Gyoro SSR+ Awakened Pig God | SSR+ Gouketsu |
| Jul-22 | SSR+ Unparalleled Subterranean King | SSR+ FF |
| Aug-22 | SSR+ Extreme Deep Sea King | SSR+ Gyoro |
| Sep-22 | SSR+ Extreme Tank-Top Master | SSR+ STK |
| Oct-22 | SSR+ Upgraded Drive Knight | SSR+ DSK |
| Nov-22 | SSR+ Awakened Melzargard | SSR+ TTM |
| Dec-22 | SSR+ Extreme Watchdogman | SSR+DK |
| Jan-23 | SSR+ Awakened Groribas | SSR+Melz |
| Feb-23 | SSR+ Unparalleled Zombieman | SSR+WDM |
| Mar-23 | SSR+ Extreme Puri-Puri Prisoner | SSR+Grori |
| Apr-23 | SSR+ Upgraded Metal Knight | SSR+ZBM |
| May-23 | SSR+ Extreme Superalloy Blackluster | SSR+PPP |
| Jun-23 | ??? | SSR+MK |
