I think you might be able to get a little closer to what ComputerSherpa intended.
Here is my interpretation.
Thwok - Kobold Trainer Level 3 Elite Skirmisher (Leader)
Small Natural Humanoid (reptile) XP 300
Initiative +6 Senses Perception +1, darkvision
Remember Your Training (fear) aura 5; All Kobold allies inside aura gain
a +1 bonus to their Fortitude, Reflex and Will defences and gain a +2
bonus to skill checks and saving throws vs. Fear effects
HP 90; Bloodied 45
AC 19; Fortitude 15, Reflex 18, Will 18
Saving Throws +2
Speed 6
Action Points 1
Sword Slash (Standard; at-will)
Attack +8 vs. AC; 1d6+3 damage
Cleaving Strike (Standard; at-will)
Attack +8 vs. AC; 1d6+3 damage; on hit Thwok deals 3 damage to a
secondary target within reach
Twin Swords (Standard; recharge 
)
2 attacks against the same target; attack +8 vs. AC; 1d6 damage
Angry Attack (Standard; encounter)
Attack +6 vs. Fortitude; 1d6+3 damage; on hit 1 ally gains a +3 attack
and damage bonus on their next attack against the target before the end
of their next turn
Sneaky Flourish (Standard; encounter)
Attack +8 vs. AC; 1d6+6 damage; Thwok may shift 1 square either before
or after making this attack
Combat Advantage
Thwok deals an additional 1d6 against targets granting it combat
advantage
Trap Sense
Thwok gains a +2 bonus to all defences against traps
Shifty (Minor; at-will)
Thwok may shift 1 square as a minor action
Alignment Unaligned Languages common, draconic
Skills Athletics +7, Dungeoneering +6, Intimidate +9
Str 12 (+2) Dex 17 (+4) Wis 10 (+1)
Con 13 (+2) Int 10 (+1) Cha 16 (+4)
Equipment hide armour, 2x short sword
With monsters its not always a case of porting the PC powers over directly, you are usually better off interpreting them for best effect.
I didn't give him mob attack because I think that is more of a minion or standard creature power. I think it could get a little unbalanced if it was applied to an elite.
anyway, I hope this helps.
Here is my interpretation.
Thwok - Kobold Trainer Level 3 Elite Skirmisher (Leader)
Small Natural Humanoid (reptile) XP 300
Initiative +6 Senses Perception +1, darkvision
Remember Your Training (fear) aura 5; All Kobold allies inside aura gain
a +1 bonus to their Fortitude, Reflex and Will defences and gain a +2
bonus to skill checks and saving throws vs. Fear effects
HP 90; Bloodied 45
AC 19; Fortitude 15, Reflex 18, Will 18
Saving Throws +2
Speed 6
Action Points 1

Attack +8 vs. AC; 1d6+3 damage

Attack +8 vs. AC; 1d6+3 damage; on hit Thwok deals 3 damage to a
secondary target within reach



2 attacks against the same target; attack +8 vs. AC; 1d6 damage

Attack +6 vs. Fortitude; 1d6+3 damage; on hit 1 ally gains a +3 attack
and damage bonus on their next attack against the target before the end
of their next turn

Attack +8 vs. AC; 1d6+6 damage; Thwok may shift 1 square either before
or after making this attack
Combat Advantage
Thwok deals an additional 1d6 against targets granting it combat
advantage
Trap Sense
Thwok gains a +2 bonus to all defences against traps
Shifty (Minor; at-will)
Thwok may shift 1 square as a minor action
Alignment Unaligned Languages common, draconic
Skills Athletics +7, Dungeoneering +6, Intimidate +9
Str 12 (+2) Dex 17 (+4) Wis 10 (+1)
Con 13 (+2) Int 10 (+1) Cha 16 (+4)
Equipment hide armour, 2x short sword
With monsters its not always a case of porting the PC powers over directly, you are usually better off interpreting them for best effect.
I didn't give him mob attack because I think that is more of a minion or standard creature power. I think it could get a little unbalanced if it was applied to an elite.
anyway, I hope this helps.