There are 2 monster(s) found that have the ability to use Shield Boomerang:

Monster Mob
Lv.
HP Size / Race / Element Flee 95% /
Hit 100%
Skill
Lv.
Skill
Analysis
Paladin Randel (Re-Stats) 160 6870000 Medium / Demi-Human / Holy 4 413 / 345 5 Go
Randel (Re-Stats) 141 478745 Medium / Demi-Human / Holy 3 348 / 230 5 Go