Take One Step Ahead in Uber Lab
You can replace Faster Casting with Arcanist Brand to automate Frostbolt
Use it on red maps and vs bosses
If you have some currency - buy Bitterdream
Socket Ice Nova of Frostbolts + Spell Echo + Intensify inside
If you want to rush to Eater/Exarch you would need next items :
Talk to Lilly to sail from Oriath
Take Craft Recipe and reconnect to the game
Talk to Kirac and take a map as a reward
move to a map device, run the map and kill the boss
Talk to Kirac to unlock your map device
Take the Waypoint to the Ravaged Square. Talk to Innocence
Enter the Canals and move through the area
Enter the Feeding Trough and move through the area
Talk to Sin and enter the Altar of Hunger
Kill Kitava
Talk to Lani in Oriath to receive the Book of Skill reward
When you get the gem - finally switch to the Ice Nova of Frostbolts
Buy next gems : Frostbolt(a1), Faster Casting(a2), Spell Echo(a4),
Returning Proj(a4), Energy Leech(a6), Intensify(a6), Punishment(a6), Vitality(a6)
If you have not enough sockets - temporarily remove Momentum/Inspiration
Take Mind over Matter
Take the Waypoint to the Aspirant's Plaza. Complete third labyrinth
Skill Polymath. Return to Oriath Docks
Keep running the lab until you obtain Ice Nova of Frostbolts using Divine Font
Make sure to keep an Ice Nova and random Int gem for the options
Change your tree :
Remove Dark Arts cluster - take Charisma and Eldritch Battery
Buy next gems : Hatred(act3), Inspiration(act6), Divine Blessing(act6), Shield Charge(act6), Haste(act6)
Equip a Wand/Sceptre and Shield
Use bench to add Cold damage to spells on weapon
Craft resistance before going Lab, craft dext/str if needed
To have enough ES for Hatred you should have lvl 65 Evasion/ES body armour from Lani equipped / Melding cluster Allocated
Enter the Cathedral Rooftop
Enter the Cathedral Apex
Kill the Cultists and Gargoyles to free Bannon
Return to the Cathedral Rooftop and make your way to the right
Enter the Ravaged Square
Create portal, grab the Ravaged Square Waypoint
Move to the Torched Courts
Run through the area, enter the Desecrated Chambers
Run through the area, enter the Sanctum of Innocence
Kill Avarius Reassembled. Quit to the Desecrated Chambers
Return to the Oriath Docks via Waypoint
Enter the portal you have created earlier
Enter the Control Blocks. Move through the area and kill Vilenta. Logout
((optional): Take the Waypoint to the Ravaged Square
Enter the Ossuary and Elixir of Allure
Find and complete the final Labyrinth Trial for the Merciless Lab. Logout)
Talk to Lani to receive the book of skill reward and Silver Flask
Also grab a Hybrid Dext/Int armour as a reward
Talk to Innocence
Oriath Docks(Act10)