There are 24 monster(s) found that have the ability to use Decrease Agility:

Monster Mob
Lv.
HP Size / Race / Element Flee 95% /
Hit 100%
Skill
Lv.
Skill
Analysis
Agav 73 29620 Medium / Demi-Human / Neutral 4 217 / 125 48 Go
Champion Chen (Re-Stats) 160 4249350 Medium / Demon / Water 4 390 / 330 10 Go
Chen (Re-Stats) 141 218721 Medium / Demon / Water 4 315 / 235 10 Go
Dark / Gloomy Coelacanth (Re-Stats) 100 2200000 Large / Fish / Water 2 335 / 280 48 Go
Deviling 31 64500 Medium / Demon / Shadow 4 183 / 101 1 Go
Doppelganger 72 249000 Medium / Demon / Shadow 3 272 / 182 48 Go
Dracula 85 320096 Large / Demon / Shadow 4 245 / 200 48 Go
Drake 70 326666 Medium / Undead / Undead 1 224 / 170 48 Go
Engkanto (Re-Stats) 125 23948 Medium / Demi-Human / Neutral 2 281 / 202 5 Go
Erend / Errende Ebecee 59 6980 Medium / Demi-Human / Holy 2 201 / 110 1 Go
Garm / Hatii 73 197000 Large / Brute / Water 4 243 / 219 48 Go
Grotesque / Weird Coelacanth (Re-Stats) 100 2200000 Large / Fish / Water 2 335 / 280 48 Go
High Priest Magaleta / High Priest Margaretha 99 1092910 Medium / Demi-Human / Holy 4 266 / 203 48 Go
High Priest Magaleta / High Priest Margaretha 99 182910 Medium / Demi-Human / Holy 4 266 / 203 48 Go
Hylozoist / Heirozoist 51 7186 Small / Demon / Shadow 2 192 / 99 1 Go
Lord of Death / Lord of the Dead 94 603383 Large / Demon / Shadow 3 269 / 213 48 Go
Magaleta / Margaretha Sorin 90 61282 Medium / Demi-Human / Holy 3 253 / 119 48 Go
Orc Hero 77 585700 Large / Demi-Human / Earth 2 257 / 188 48 Go
Seaweed (Re-Stats) 100 10 Small / Fish / Water 1 176 / 121 1 Go
Skeggiold 81 295200 Small / Angel / Holy 2 246 / 201 48 Go
Thanatos Dolor / Dolor of Thanatos 83 59922 Small / Undead / Ghost 4 297 / 179 48 Go
Thanatos Dolor / Dolor of Thanatos 83 59922 Small / Undead / Ghost 4 297 / 179 48 Go
Tikbalang (Re-Stats) 115 22131 Large / Brute / Wind 3 254 / 187 10 Go
Wraith Dead 74 43021 Large / Undead / Undead 4 264 / 193 9 Go