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+ Boros | Hellfire Flame |
| Aug-21 | SSR+ CK | SSR+ Awaken CE |
| Sep-21 | SSR+ MB | SSR+ Awaken Boros |
| Oct-21 | SSR+ King | SSR+ Awaken CK |
| Nov-21 | SSR+ Geryu | SSR+ Awaken MB |
| Dec-21 | SSR+ SF | SSR+ Awaken King |
| Jan-22 | SSR+ AS | SSR+ Geryu |
| Feb-22 | SSR+ Garou | SSR+ SF |
| Mar-22 | SSR+ Phoenix Man | SSR+ AS |
| Apr-22 | SSR+ Gouketsu | SSR+ Garou |
| May-22 | SSR+ Flashy Flash | SSR+ PXM |
| Jun-22 | SSR+ Gyoro SSR+ Pig God | SSR+ Gouketsu |
| Jul-22 | SSR+ STK | SSR+ FF |
| Aug-22 | SSR+ DSK | SSR+ Gyoro |
| Sep-22 | SSR+ TTM | SSR+ STK |
| Oct-22 | SSR+ DK | SSR+ DSK |
| Nov-22 | SSR+ Melzargard | SSR+ TTM |
| Dec-22 | SSR+ WDM | SSR+DK |
| Jan-23 | SSR+ Groribas | SSR+Melz |
| Feb-23 | SSR+ ZBM | SSR+WDM |
| Mar-23 | SSR+ PPP | SSR+Grori |
| Apr-23 | SSR+ MK | SSR+ZBM |
| May-23 | SSR+ Alloy | SSR+PPP |
| Jun-23 | New! UR UR TT | SSR+MK |
| Jul-23 | UR Sonic | SSR+Alloy |
| Aug-23 | UR G4 | UR TT |
| Sep-23 | UR Suiryu | UR Sonic |
| Oct-23 | UR Boros | UR G4 |
| Nov-23 | UR MB | UR Suiryu |
| Dec-23 | UR Bomb | UR Boros |
| Jan-24 | UR KING | UR MB |
| Feb-24 | UR AS | UR Bomb |
| Mar-24 | UR GW | UR KING |
| Apr-24 | UR Melz | UR AS |
| May-24 | UR Hellfire | UR GW |
| Jun-24 | UR Genos | UR Melz |
| Jul-24 | UR Gouketsu | UR HF |
| Aug-24 | UR Flashy | UR Genos |
| Sep-24 | UR Mosquito Girl | UR Gouketsu |
| Oct-24 | UR Child Emperor | UR FF |
| Nov-24 | UR Zombieman | UR MG |
| Dec-24 | ?? | UR CE |
