These are the two scripts I made. I tried some debug and they should work properly.
I know they are not optimized and it's full of garbage, but I just need them to do their job smile

Can someone take a look and tell me if something's wrong?

Code:
on *:TEXT:!battle:#: {
  if (!%comwait) {
    set -u1 %comwait 1
    var %mob = $rand(1,100)
    if ((%mob == 1) || ($v1 == 2) || ($v1 == 3) || ($v1 == 4) || ($v1 == 5) || ($v1 == 6) || ($v1 == 7) || ($v1 == 8) || ($v1 == 9) || ($v1 == 10)) var %enc = Nothing
    if ((%mob == 11) || ($v1 == 12) || ($v1 == 13) || ($v1 == 14) || ($v1 == 15) || ($v1 == 16) || ($v1 == 17) || ($v1 == 18) || ($v1 == 19) || ($v1 == 20)) var %enc = bat
    if ((%mob == 21) || ($v1 == 22) || ($v1 == 23) || ($v1 == 24) || ($v1 == 25) || ($v1 == 26) || ($v1 == 27) || ($v1 == 28) || ($v1 == 29) || ($v1 == 30)) var %enc = flan
    if ((%mob == 31) || ($v1 == 32) || ($v1 == 33) || ($v1 == 34) || ($v1 == 35) || ($v1 == 36) || ($v1 == 37) || ($v1 == 38) || ($v1 == 39) || ($v1 == 40)) var %enc = goblin
    if ((%mob == 41) || ($v1 == 42) || ($v1 == 43) || ($v1 == 44) || ($v1 == 45) || ($v1 == 46) || ($v1 == 47) || ($v1 == 48) || ($v1 == 49) || ($v1 == 50)) var %enc = bomb
    if ((%mob == 51) || ($v1 == 52) || ($v1 == 53) || ($v1 == 54) || ($v1 == 55) || ($v1 == 56) || ($v1 == 57) || ($v1 == 58)) var %enc = ahriman
    if ((%mob == 59) || ($v1 == 60) || ($v1 == 61) || ($v1 == 62) || ($v1 == 63) || ($v1 == 64) || ($v1 == 65) || ($v1 == 66)) var %enc = basilisk
    if ((%mob == 67) || ($v1 == 68) || ($v1 == 69) || ($v1 == 70) || ($v1 == 71) || ($v1 == 72) || ($v1 == 73)) var %enc = cactuar
    if ((%mob == 74) || ($v1 == 75) || ($v1 == 76) || ($v1 == 77) || ($v1 == 78)) var %enc = tomberry
    if ((%mob == 79) || ($v1 == 80) || ($v1 == 81) || ($v1 == 82) || ($v1 == 83)) var %enc = malboro
    if ((%mob == 84) || ($v1 == 85) || ($v1 == 86) || ($v1 == 87) || ($v1 == 88)) var %enc = adamantoise
    if ((%mob == 89) || ($v1 == 90) || ($v1 == 91) || ($v1 == 92)) var %enc = behemoth
    if ((%mob == 93) || ($v1 == 94) || ($v1 == 95)) var %enc = UltimaWeapon
    if ((%mob == 96) || ($v1 == 97)) var %enc = Gilgamesh
    if ((%mob == 98) || ($v1 == 99)) var %enc = Ozma
    if (%mob == 100) var %enc = Sephiroth
    msg $chan /me $nick is looking for an opponent to fight. $iif(%enc = Nothing,%enc,$iif($v1 == bat,A %enc,$iif($v1 == flan,A %enc,$iif($v1 == goblin,A %enc,$iif($v1 == bomb,A %enc,$iif($v1 == ahriman,An %enc,$iif($v1 == basilisk,A %enc,$iif($v1 == cactuar,A %enc,$iif($v1 == tomberry,A %enc,$iif($v1 == malboro,A %enc,$iif($v1 == adamantoise,An %enc,$iif($v1 == behemoth,A %enc,$iif($v1 == UltimaWeapon,Look out! %enc,$iif($v1 == Gilgamesh,The mighty %enc,$iif($v1 == Ozma,That's hard! %enc,Good luck! %enc))))))))))))))) was found.
    if (%enc == Nothing) return
    var %currlvl = $readini(ffbot\users.ini, level, $nick)
    if (%currlvl == $NULL) %currlvl = 1
    var %moblvl = $readini(ffbot\mobs.ini, level, %enc)
    var %win = 0
    if (%currlvl > $calc((%moblvl)+2)) var %win = 1
    elseif ($calc((%currlvl)+2) < %moblvl) var %win = 2
    else var %win = $rand(1,2)
    if (%win == 1) {
      var %expgained = $readini(ffbot\mobs.ini, exp, %enc)
      writeini ffbot\users.ini exp $nick $calc($readini(ffbot\users.ini, exp, $nick) + %expgained)
      var %totalexp = $readini(ffbot\users.ini, exp, $nick)
      var %i = 1
      while (%i <= $ini(ffbot\levels.ini,levels,0)) { 
        var %item $ini(ffbot\levels.ini,levels,%i) 
        var %expneed $readini(ffbot\levels.ini,levels,%item) 
        if (%totalexp >= %expneed) var %newlvl = %i
        inc %i
      }
      writeini ffbot\users.ini level $nick %newlvl
      if (%currlvl > $calc((%moblvl)+2)) {
        if (%currlvl < %newlvl) msg $chan /me Easy battle. $nick get %expgained pt exp. LEVEL UP! DatSheffy 
        else msg $chan /me Easy battle. $nick get %expgained pt exp.
      }
      elseif (%currlvl < %newlvl) msg $chan /me $nick won. You get %expgained pt exp. LEVEL UP! DatSheffy 
      else msg $chan /me $nick won. You get %expgained pt exp. 
    }
    if (%win == 2) {
      if ($calc((%currlvl)+2) < %moblvl) msg $chan /me $nick lost. Your level is too low for this.  
      else msg $chan /me $nick lost. Unlucky battle, try harder next time. 
    }
  }
  else msg $chan /me this command is on cool down
}


Code:
on *:TEXT:!mylvl:#: {
  var %currlvl = $readini(ffbot\users.ini, level, $nick)
  if (%currlvl == $NULL) %currlvl = 1
  var %currexp = $readini(ffbot\users.ini, exp, $nick)
  var %nextexp = $readini(ffbot\levels.ini, levels, $calc(%currlvl + 1))