Straight-up damage and a good slow. Spam this ability in-lane to harass enemies safely as the range is great. This slow, along with your ultimate, work as different slows; meaning they stack.

Use this ultimate when there are less creeps around and more heroes. This works very well with initiators who keep foes together like Tidehunter, Engima, Faceless Void and Dark Seer. Use it early on when ganking.

Frost Shield works great in combination of your other abilities: 1. Use it to farm creep camps at a minimal cost 2. Avoid breaking your Tranquil Boots with Frost Blast and Frost Shield to slow and chase foes 3. Use Frost Shield with Sinister Gaze to pull enemies close and trap them close 4. Use Frost Shield near towers to slow and repel creep pushes Use this ability to farm regularly.

Sinister Gazes range is abysmal so be wary when using this. Combined with Frost Shield, Sinister Gaze will deal incremental damage as it slowly pulls enemies closer. Combine it with your Chain Frost to keep foes in place and taking damage. Use this ability on jungle creeps to farm them quickly.

Before casting your ultimate, activate Ice Spire near to opponents. If necessary, casting Frost Shield to further keep it alive can be valid if it means Chain Frost lasts longer. More importantly, Ice Spire is one of your longest range abilities, justifying its priority since it slows enemies.

Iron Branch can be placed on the ground to then be consumed by your tangos for additional healing.

Rely on Blood Grenade as your initiating or sequential slow on foes when going for a kill in-lane or throughout the ganking phase

Opt for Magic Stick early if the enemy spam a lot of spells or you’ll be in the lane significantly. Magic Wand can be bought as early as before Boots of Speed or as late as after your core Boots upgrade depending on how the enemy and their spell usage. Magic Wand can also be bought to make room for other items due to limited space.

Arcane Boots is most importantly used to give you the necessary mana to heavy use your spells and abilities. Consider disassembling them (right-click on the item and select disassemble) if youre building towards major items like Aether Lens or other. This will hasten your timing in reaching those items which should preserve your mana-pool sufficiently from there on.

Aghs Shard makes your ability to fight safer, easier and more comfortable if need to do it solo. Your Ice Spire can be casted to then be used to slow additionally with Frost Shield or follow-through with Chain Frost.

The value of Force Staff is multiple. You can use it as a pseudo-blink if youre a support hero to get into position after initiation or to avoid an enemys initiation and jump in at the right time. It can be used to pull an ally away after being engaged or initiated on. This can force enemies to have to commit harder to a kill than they want to or bringing an ally closer to the safety of your teammates.

Phylactery provides great stats for ganking heroes that need the additional slow and damage to set up kills and follow-through.

Spirit Vessel gives more survivability on Lich while also providing a damage-scaling item that capitalizes on your early-game kills into late-game potential damage-dealers to very tanky enemies.

Aeon Disk helps you get out of a jam where you are constantly being chain-stunned or destroyed by abilities like Faceless Voids ultimate or PAs massive critical strikes.

The value of Lotus Orb is both its stats in mana and armor but also the ability to dispel slows and silences that would be keeping you down. Furthermore, the ability to cast back big nuking abilities to your enemies has tremendous value, especially against stuns or ultimate damaging abilities.

Glimmer Cape can be used both for you or for an ally to ensure they survive against targeted big spell abilities. The goal of Glimmer is to reduce the damage your ally is taking and to disconnect the enemy’s from targeting your ally for future attacks such as follow-ups after a stun.

Blink Dagger assures Lich to engage only when its most opportune and safe. Stay in the back and hidden before Blinking onto your ideal target to Sinister Gaze them or to Ice Spire into Chain Frost into Sinister Gaze. Use Blink Dagger to position appropriate in big team fights and engage when you know you wont be targeted.

Additional cast range for your abilities if positioning is a challenge for you. Continue disassembling your Arcane Boots, if you have them, to hasten your timing on acquiring this item.

Aghs Scepter is an AoE effect that can be strong against multi-unit heroes like Beastmaster or illusion-based heroes like Phantom Lancer. More importantly, the duration of Aghs Scepter is incredibly strong where an AoE cast of it can be game-winning.

For heroes that rely on physical damage like Juggernaut (and Omnislash), Clinkz and Riki, Ghost Scepter can be a cheap option to delay their ganks and make them waste their abilities that do no damage.

Similar to Eul's Scepter of Divinity, Rod of Atos entraps foes for a period in time, long enough for your follow-up abilities or skill-shots. Rely on Rod of Atos to set up a gank as its range is quite far.

For magic-intensive enemy teams, Pipe of Insight can be considered.

After you disassemble your Arcane Boots, you need to build new boots to help with your positioning so you can move in on fights when youre most needed and stay out of fights when big initiations will occur.

Solar Crest is a great item that works with Frost Shield, providing even more survivability to your allies. The movement speed from Solar Crest works well with a hero that stays on the rim of fights.

Veil of Discord takes advantage of your strong nuking spells but also provides strong mana-related stats to improve your pool to be able to cast these spells regularly.

Boots of Bearing makes initiating easier for you. Boots of Bearing should be used liberally to give your team incredible movement speed to engage the enemy after initiation or, if necessary, as an escape if you find you or your teammates are in trouble. Your Boots will recharge, so don’t worry about running out.

Pavise is a good intermediary item to provide additional protection for yourself or allies while also giving you incredible magic regeneration so you wont need to pick up regen or go back to base.