Sky Cannon Booster Knuckle

Item ID 560007 Name Sky Cannon Booster Knuckle
A Knuckle designed to help adventurers grow.
_______________________
Cannot be refined normally.
_______________________
ATK +2%
_______________________
For each Refine Level:
MaxHP +250
MaxSP +20
_______________________
For each 15 Base Level:
ATK +1% (Applies up to Base Level 195)
_______________________
Refine Level +7:
For each Level of Chain Combo:
MaxHP +2%
_______________________
Refine Level +9:
ATK +5%
Increases damage of Sky Net Blow and Tiger Cannon by 25%.
_______________________
Refine Level +11:
Decreases Tiger Cannon skill cooldown by 1 second.
Increases Melee Physical Damage by 15%.
_______________________
Refine Level +13:
Increases damage of Sky Net Blow and Tiger Cannon by additional 15%.
_______________________
Type: Knuckle
Attack: 190
Weight: 0
Weapon Level: 4
_______________________
Requirement:
Base Level 100
Sura
Weapon Level 4 Identifier CP_B_Knuckle
Attack 190 Type Weapon - Knuckle
MATK 0 Equip Locations Main Hand
Defense 0 Equippable Jobs Monk
Range 1 Equip Gender Both (Male and Female)
Slots 0 Equip Upper Third, Third Upper, Third Baby
Weight 0 Min Equip Level 100
NPC Buy 0 Max Equip Level None
NPC Sell 0 Refineable Yes
Credit Price None Trade restriction Can't be dropped, Can't be traded with player, Can't be put in Cart, Can't be put in Storage, Can't be put in Guild Storage, Can't be attached in Mail, Can't be auctioned
Item Script 
.@r = getrefine();
bonus bAtkRate,2+(min(BaseLevel,195)/15);
bonus bMaxHP,250*.@r;
bonus bMaxSP,20*.@r;
if (.@r>=7) {
   bonus bMaxHPrate,2*getskilllv("MO_CHAINCOMBO");
}
if (.@r>=9) {
   bonus bAtkRate,5;
   bonus2 bSkillAtk,"SR_SKYNETBLOW",25;
   bonus2 bSkillAtk,"SR_TIGERCANNON",25;
}
if (.@r>=11) {
   bonus bShortAtkRate,15;
   bonus2 bSkillCooldown,"SR_TIGERCANNON",-1000;
}
if (.@r>=13) {
   bonus2 bSkillAtk,"SR_SKYNETBLOW",15;
   bonus2 bSkillAtk,"SR_TIGERCANNON",15;
}