Uhmm for scripting way.. use set array to disable the effect but the item is equipable by normal job example
map,x,y,3 script Rebirth 123,{
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mes "Level Reborn";
set ......,,
set _rebirth,1;
close
}
item_db.txt
,,,,,,{ if(_rebirth==1 ) { end; } bonus bStr,5; bonus bAgi,5; },{},{}