What do you mean by double mo'd? You mean double shrine craft? Cause MOs that had chance to spawn "mystic orbs effect applied to the item are doubled" affix were removed.
A5 merc works nice with:
Erawan
Erawan
Body Armors
'LemKoCham'
Runeword Level: 83
15% Combat Speeds
5% Chance of Crushing Blow
+(144 to 171)% Enhanced Defense
(27 to 30)% to Strength
(27 to 30)% to Vitality
Physical Resist (13 to 15)%
(15 to 20)% Bonus to Defense
or
Shroud Royal
Shroud Royal
Full Plate Mail (4)
Defense: (336 - 390) to (676 - 786)
Required Level: 11
Required Strength: 35
Item Level: 29
Additional Strength Damage Bonus: 0.01171875%
+(1 to 2) to Vanquish
+(35 to 57)% Enhanced Defense
(3 to 5)% to All Attributes
Physical Damage Reduced by (7 to 10)
(6 to 8)% Gold Find
(6 to 8)% Magic Find
Socketed (2)
Defense: (1082 - 1213) to (2067 - 2318)
Required Level: 28
Required Strength: 70
Item Level: 40
Additional Strength Damage Bonus: 0.015625%
+(5 to 6) to Vanquish
+(81 to 103)% Enhanced Defense
(9 to 11)% to All Attributes
Physical Damage Reduced by (15 to 18)
(10 to 12)% Gold Find
(10 to 12)% Magic Find
Socketed (4)
Defense: (2707 - 2983) to (5055 - 5570)
Required Level: 46
Required Strength: 245
Item Level: 67
Additional Strength Damage Bonus: 0.01953125%
+(9 to 10) to Vanquish
+(126 to 149)% Enhanced Defense
(15 to 17)% to All Attributes
Physical Damage Reduced by (23 to 26)
(14 to 16)% Gold Find
(14 to 16)% Magic Find
Socketed (5)
Defense: (4043 - 4401) to (7534 - 8200)
Required Level: 54
Required Strength: 490
Item Level: 85
Additional Strength Damage Bonus: 0.0234375%
+(11 to 12) to Vanquish
+(149 to 171)% Enhanced Defense
(18 to 20)% to All Attributes
Physical Damage Reduced by (27 to 30)
(18 to 20)% Gold Find
(18 to 20)% Magic Find
Socketed (6)
Truce
Truce
Belts
'Jah'
Runeword Level: 80
5% Combat Speeds
Stun Attack
Slows Attacker by 5%
+(172 to 200)% Enhanced Defense
Physical Resist 10%
Fawkes
Fawkes
Barbarian Helms
'PulRhal'
Runeword Level: 100
20% Chance to cast level 40 Ember Spirit on Melee Attack
+(2 to 3) to All Skills
50% Cast Speed
1% to Fire Spell Damage (Based on Character Level)
+(26 to 32) to Powder Keg
+150 to Energy
(5 to 10)% to Energy
Fire Resist +30%
+(61 to 90) Life after each Kill
Nephilim
Nephilim
Boots
'ZodThul'
Runeword Level: 85
+(144 to 171)% Enhanced Defense
+150 Defense
+50 to Strength
(21 to 25)% to Strength
+50 to Vitality
(21 to 25)% to Vitality
Cold Resist +25%
+15 Life after each Kill
or
Craton
Craton
Boots
'UmLem'
Runeword Level: 58
1% Chance to cast level 7 Shower of Rocks on Melee Attack
3% Chance of Crushing Blow
+(21 to 25) to all Attributes
5% to Vitality
Elemental Resists +10%
Physical Damage Reduced by (16 to 20)
(31 to 40)% Bonus to Defense
(1 to 10)% Gold Find
(1 to 10)% Magic Find
+(1 to 10) to Light Radius
double creepy shrine crafted gloves, aim for stormblast proc
weird shrine crafted flamberge/great sword blessed with intimidating shrine mo'd with %damage to maximum and then %deadly strike
Socket weapon with jah runes, gloves and armor (if using shroud royal) with ko runes. Use Ber crafted jewels for %ll