RF Servers

RF Online Leon Combination Simulator

Try Leon weapon combinations before you spend real pieces. Pick any of the 18 Leon weapons, choose safe, balanced or risky pieces and combine: every roll uses the official RF Online 2.2.3.2 combination table.

Combination
Result
Leon's Blueprint icon

Success chance: 80% · High version: 5%

Leon weapon

4 pieces + Leon's Blueprint + 1,000,000 Race Currency per try. Hover a version to see its stats.

Pieces

Each piece comes in a safe, balanced or risky version. Safe pieces succeed more often, risky pieces make the high version more likely. Only the mix counts, not the slot.

  • Leon Beam Siege Bow Piece1 iconLeon Beam Siege Bow Piece1
  • Leon Beam Siege Bow Piece2 iconLeon Beam Siege Bow Piece2
  • Leon Beam Siege Bow Piece3 iconLeon Beam Siege Bow Piece3
  • Leon Beam Siege Bow Piece4 iconLeon Beam Siege Bow Piece4

Chances with these pieces

High version
5%
Mid version
20%
Low version
55%
Failed
20%

Session

Attempts
0
High versions
0
Mid versions
0
Low versions
0
Failures
0
Race Currency
0

Race Currency uses the current weapon's fee for every attempt in the session.

How Leon combinations work

A Leon weapon takes pieces 1 to 4 of that weapon, a Leon's Blueprint and 1,000,000 Race Currency. Each piece exists in three versions. Safe pieces raise the overall success chance, risky pieces lower it but shift the result towards the high version, which has the largest bonus effects. Balanced pieces sit in between.

Only the mix of versions matters, not which slot each piece goes in. Four safe pieces succeed 80% of the time with a 5% shot at the high version. Four risky pieces succeed only 28% of the time, but the high version becomes the most likely result at 19%.

These odds come from the unmodified 2.2.3.2 server, and every Leon weapon shares the same table. Private servers can change them, so check your server's rules. For recipes and where the pieces come from, read the RF Online Leon weapon combination guide. Before upgrading the result, try it in the Talic upgrade simulator: a failed upgrade destroys a Leon weapon.

Leon combination odds for every piece mix

RF Online Leon weapon combination chances by piece mix
Pieces usedSuccessLow versionMid versionHigh version
4 safe80%55%20%5%
3 safe + 1 balanced74%48%20%6%
3 safe + 1 risky67%39%20%8%
2 safe + 2 balanced68%41%20%7%
2 safe + 1 balanced + 1 risky61%31%20%10%
2 safe + 2 risky54%23%18%13%
1 safe + 3 balanced62%33%20%9%
1 safe + 2 balanced + 1 risky55%25%18%12%
1 safe + 1 balanced + 2 risky48%18%15%15%
1 safe + 3 risky41%13%11%17%
4 balanced56%27%18%11%
3 balanced + 1 risky49%20%15%14%
2 balanced + 2 risky42%14%12%16%
1 balanced + 3 risky35%7%10%18%
4 risky28%4%5%19%

Success colour: overall chance. High-version colour: brighter green means a better shot at the best roll. Order of the pieces doesn't matter, only how many of each kind you use.

Every Leon weapon you can combine