First set the memo field of the equipment
screen1


接頭語数1 ・・・ This weapon can grant up to 1 object
接頭語リスト2 ・・・ This weapon selects an object from List 2


Next create a state as follows
screen2




Next set script
#リストID2
NAME_VALUE_LIST[2][1] = ["S",30,10,1]

The names of the weapons I got are as follows
『Strongバトルアックス』