Army of Ruin

My main problem with this achievement was killing the boss way before the 22minute marker.
I decided to go for a close range build.

I used Midas.

Weapons:

Living Paintbrush
Magic Staff
Mighty Punch
Magical Slingshot
Sparksword
Wolf's Fangs

Trinkets:

Soul Container (favourite)
Forbidden Sword (favourite)
Rabbits Foot
Viking Helm
Hourglas
Crimson Flask



Upgrades:

Damage 10
Fire Rate 10
Size 10
Projectile Speed 0
Duration 0
Skill 6
Experience 10
Interests 0
Speed 0
Pick Range 10
Luck 0
Health 10
Regeneration 10
Health Recovery 0
Weapon Capacity 2
Trinket Capacity 2
Projectiles 0
Extra life 3
Re-rolls 5
Banishment 5
Favorites 2

At the last few minutes I kept walking towards the bottom right, with RS only halfway, making your character slower. This makes it so the boss strays top left of you, and all his minions blocking your attacks.
After the 22 min mark, just walk in and blast his ass!

I just whent with Ogol and focused on short ranged weapons and i got Travel Boots aswell,when it was time for the boss i just keep going the opposite direction as it just to avoid doing any damage to it untill i was at the 22 min mark then i just killed it,the enemies were alot but i did get charms that increased my damage and reduce my attack range