/slay - command from what plugin?

I can't find from what plugin this command is, i can't also find permissions in groups, but players can slay by that '/slay':

 

siemaeniu500 Essentials, I think.

 

I also thought that, by it probably isn't

Permissins for moderator group:

Permissions:

Code:

  Moderator:
    default: false
    permissions:
    - ctl.green
    - -vanish.see
    - -vanish.list
    - -worldedit.clipboard.copy
    - -worldedit.region.stack
    - essentials.broadcast
    - anticheat.check.exempt
    - essentials.enchant
    - essentials.gamemode
    - essentials.jail.exempt
    - essentials.jails
    - essentials.keepxp
    - essentials.mute
    - essentials.remove
    - essentials.setwarp
    - essentials.spawner.*
    - essentials.spawnmob
    - essentials.spawnmob.*
    - essentials.speed
    - essentials.togglejail
    - essentials.tp
    - essentials.tp.others
    - essentials.tpa
    - essentials.tpahere
    - essentials.tphere
    - essentials.warps.*
    - essentials.whois
    - figadmin.ban
    - figadmin.checkban
    - figadmin.kick
    - figadmin.tempban
    - figadmin.unban
    - maxbans.ban
    - maxbans.checkip
    - maxbans.forcespawn
    - maxbans.ipban
    - maxbans.kick
    - maxbans.tempban
    - maxbans.tempipban
    - maxbans.unban
    - maxbans.warn
    - nametags.color.green
    - OpenInv.openinv
    - ultraban.ban
    - ultraban.check
    - ultraban.checkip
    - ultraban.dupeip
    - ultraban.editban
    - ultraban.fine
    - ultraban.help
    - ultraban.history
    - ultraban.ipban
    - ultraban.kick
    - ultraban.lockdown.override
    - ultraban.mute
    - ultraban.permaban
    - ultraban.tempban
    - ultraban.tempipban
    - ultraban.unban
    - ultraban.unmute
    - ultraban.warn
    - vanish.silentjoin
    - vanish.standard
    - vanish.nochat
    - vanish.effects.bats
    - vanish.effects.explode
    - vanish.effects.smoke
    - worldedit.*
    - worldguard.*
    - anticheat.check.exempt
    - -vanish.adminalerts
    - -vanish.preventdamage

 

Really, I could have sworn it was.
What other plugins are you running?

 

http://scr.hu/1uma/xmkrj

 

Worldguard

 

Try that! It sounds familiar now that I think about it.