Add vulnerable

1{
2  "id": 953,
3  "BuffDesc": "Each layer increases damage taken by 20%.",
4  "BuffIcon": "skillbuff_162010",
5  "BuffName": "GVG Arrow Tower Vulnerability",
6  "BuffRate": {
7    "Odds": 100
8  },
9  "BuffType": {
10    "isgain": 0,
11    "isdisperse": 0
12  },
13  "IconType": 1,
14  "BuffEffect": {
15    "type": "AttrChange",
16    "DamReduc": -0.2,
17    "MDamReduc": -0.2,
18    "limit_layer": 10
19  },
20  "BuffStateID": 30033054
21}