I

Monster Rounds

Allows you to tank the wave for much longer, giving effective hp since you often need to tank the wave to hit scorn on players. Also helps clear camps faster.

II

Imbue

Quicksilver Reload

Adds hundreds of healing to each Scorn. Rush this before Monster Rounds if you are healthy enough to save

I

Mystic Burst

Also adds hundreds of healing to each Scorn, but only when Scorn has 2 upgrades

II

Active

Cold Front

Use while burrowed to set up for your unburrow, or just use it while spinning. Use on tier 1 camps with Scorn to clear them instantly

III

Active

Warp Stone

This is Mo's best movement item in my opinion. You can use warp stone while burrowed to get on top of 1-story buildings and ridges. This expands Mo's getaway angles exponentially.

III

Torment Pulse

Probably going to be your top damage source every game. Synergy with Burrow and Combo. Skip this if you are far behind or in a "high elo" game. Buy right before or after Warp Stone if you are buying.

I

Rebuttal

Buy in lanes vs Viscous, Calico, Abrams and sometimes Bebop if they are using melee often

II

Imbue

Compress Cooldown

Knocks a good amount of cd off your ult, you don't need to buy this if you don't want to. Superior cooldown is a must though, so this helps with tempo.

III

Superior Cooldown

Great item, lowers all ability and item cooldowns

III

Veil Walker

Can go invis for sneaky combo's, also has very good healing uptime with Transcendent Cooldown

III

Superior Duration

Great item that synergyzes with Burrow, Combo and Scourge

IV

Juggernaut

Great item versus certain heros, like Haze, Infernus, Wraith, and Mirage

IV

Active

Scourge

Use on yourself before using Combo, or use on an ally that is in a pinch.

IV

Transcendent Cooldown

You can delay this for after Juggernaut/Scourge if you didn't buy Torment Pulse

III

Spirit Resilience

This is a very neccessary item almost every game because Mo is pretty vulnerable to spirit damage. Buy when needed, can be bought at any point in the game/build.

III

Bullet Resilience

Buy when needed, can buy at any point in the game

IV

Spirit Burn

If you need more damage. If your damage is good, get another 6400 Vitality instead, depending on what source of damage is hitting you for the most.

IV

Active

Arctic Blast

Buy this if you're out of slots or have nowhere else to spend your souls

IV

Imbue

Mercurial Magnum

Buy this if you're out of slots or have nowhere else to spend your souls

III

Active

Silence Wave

Tempo Spirit Sap into mid game Silence Wave may be strong now

III

Fortitude

Still good some games while ahead, allows you to stay on map and continue pressuring. Not great when behind since you are more likely to be close to base anyways

III

Active

Alchemical Fire

It provides good teamplay and splitpushing power as well as Midboss damage

II

Active

Guardian Ward

Buffed item, pretty solid uses.

II

Spirit Shielding

This can be a life-saver in lanes like Viscous, Pocket, Geist, or Grey Talon, where they are very burst orriented

II

Healing Booster

Similar in value to Quicksilver Reload, but less damage and less healing depending on how much Anti-heal is on you

II

Reactive Barrier

Can be a life saver vs quick stuns such as Abrams Charge, not incredibly needed vs Bebop since you can use burrow after being hooked anyways

III

Active

Knockdown

Very good item versus most heros, but Grey Talon, Lash, and Vindicta especially

III

Active

Decay

Newly buffed and does a very large amount of damage, though slowly. It is also the best anti-heal other than Spirit Burn

III

Active

Debuff Remover

Sometimes a very necessary item if the enemy has mulitple heros that are applying non-ultimate debuffs, like Infernus, Mirage, and Haze

IV

Active

Unstoppable

A good counter item to Dynamo if he keeps ulting your team. Very strong combo item with Cheat Death.

IV

Cheat Death

Cheat Death+Unstoppable+Superior Duration = Someone is getting held for a long time. Build this vs fed Shiv's now that it beats Killing Blow

IV

Active

Divine Barrier

Counter item to build versus Pocket and Wraith, but generally a good item even without a specific counter

IV

Diviner's Kevlar

An item to buy if you are weaker and want your ults to be better. Cheaper, but worse, than getting Unstoppable and Cheat Death

II

Active

Return Fire

Can be a very solid source of damage if you are getting beamed during your ults

III

Counterspell

Very, VERY strong item versus certain abilities like Lash, Shiv and Wraith ults. Unfortunately you cannot parry while burrowed or while channeling Combo

II

Enchanter's Emblem

Another item to help you in lanes where the enemies do tons of spirit damage

II

Battle Vest

Not a huge fan of Bullet Resist early, but if your burrow cooldown is being abused then this can be a good item to help

III

Berserker

Based on damage BEFORE resistances, so if you have a bunch of Bullet/Spirit Resist you will have max stacks constantly

IV

Active

Magic Carpet

I believe this is a crutch item. But you do you.

IV

Active

Phantom Strike

A good item to buy the enemies are playing outside of Warp Stone+Dash Range constantly

III

Trophy Collector

I'm not a big fan, I will only buy it in games where I want to let other peole farm(Pretty much only Eternus VI games)