[0.5] GL1TCH3D's Machine Gun Chronomancer

+ Levels to Spells is the MOST important part, along with scaling some spell damage.

The Whispering Ice is the core interaction in this build and (currently in league) is incredibly cheap. Focus on +levels. Then Exposure.

Runes in order of priority for the staff: Hedgewitch Assandra's Rune of Wisdom, Saqawal's Rune of the Sky, Thane Girt's Rune of Wildness, Greater Storm Rune or Greater Vision Rune, Greater Iron Rune. Why Storm Rune? Getting gain extra as lightning will help with shocking which is a nice multiplier in this build.

Chiming Staff is purely for the Sigil of Power on set 2.

Alpha's Howl for the extra presence area as well as spirit, something this build also needs, can be extremely impactful as well for scaling purposes.

Maligaro's Virtuosity used for early crit scaling. This allows us to skip investing in Crit Damage.

Helmet runes are VERY important. Idol of Egrin and Saqawal's Rune of Erosion are very nice for this build and improve the damage. It also pairs with Darkness Enthroned (helmet) as both are helmet slots.

OPTIONAL Snakepit must be worn in the LEFT ring slot. The goal is that every time you cast Frost Darts, you shoot 3-5 darts, and each dart will then Fork into 2 more projectiles and target other enemies around. Improves mapping immensely. This ring can also be cultivated and many of the mods are good. Mana Cost Efficiency, Chance to fire Additional Projectiles, Meta Energy Gain, Projectile Speed, are all good modifiers to have. Do note that you don't want to remove the "Left Ring: Projectiles from Spells Fork"

Solar Amulet or Twisted Amulet (with either Archmage or Cast on Critical) is the ideal as spirit is a huge value in the build. On a budget you just want to focus on getting a few spell levels and spirit. Don't worry as much about the mana, cast speed, or crit chance. Getting more defences such as Increased Maximum Energy Shield or +to maximum energy shield are also very viable here to help with the defensive layer on a budget.

OPTIONAL There's a new unique amulet called Eventide Petals that was announced which can be a huge improvement to the damage and AOE of the build. How it works is that every critical hit on a rare or unique enemy generates 3 petals. 10 petals = 5 ice crystals which can shatter to deal damage. Every 1 cast of Frost Darts launches 5 projectiles. Each projectile breaks into 2 chunks giving us 10 chunks. Therefore, every single cast is 15 hits in a Single Target scenario generating us 45 petals, or 20 crystals.

Prismatic Ring or Mnemonic Ring (new ring base with mana%) are good options. Focus on getting resists solved before you build in your other stats. Cast speed on rings is HUGE and far outweighs what you generally get from entire clusters on the tree. A lot of clusters also have downsides like Overzealous having increased mana costs and Erraticism with reduced Critical Hit Chance.

Sirenscale Gloves get rare gloves with defences. Ideally get Arcane Surge on critical if you can (this is suffix desecration). However, the Arcane Surge part is not a requirement.

Boots and Belt are standard.

Vile Robe, Feathered Raiment, Flowing Raiment are all good options. Vile Robe features the highest base ES in the game as well as the lowest required level of the key ones. Feathered Raiment is nice because the implicit "Damage is taken from mana before life" gives you, effectively, some Damage Reduction when losing ES. Flowing Raiment is my personal favorite as mana is in general a pretty restrictive resource. On a budget, focus on the defences. Any spirit roll is a benefit. Note that spirit reservation efficiency is suffix desecration only.

Jewels - Heart of the Well or Sapphire will very much want a mana on kill to smooth the experience on mapping.