The Witch is Path of Exile’s pure intelligence class, making her an unmatched master of the elemental and dark arts. When players leveling a specific class they can always fall back on generic leveling poe items.
When you level Witch, before you get into your specific builds, you’re going to want some generic leveling items. They aren’t necessary, but they will make your life a lot easier. If you’ve played much Path of Exile you’ll know these items off by heart, and probably have a set already.
For the body, get a Tabula Rasa; this is pretty standard stuff. If you have money to burn, grab a +1 to level a socketed gems version. It’ll be about five times as expensive, but it’ll give you a nice boost to leveling up, particularly as a spellcaster. It will also let you use multiple wands (and not be limited to Lifesprigs) if you want to. As for weapons, you will want to get dual wield Lifesprigs. Despite being level one wands, these will take you all the way to maps if you don’t want to replace them. Early on, they are great to put your gems in, because of the +1 to level.
For a helmet, get a Goldrim. These are cheap and give up to 40% to all elemental resistances. This is huge, and will easily carry you to maps. For your boots and gloves you’ll want Wanderlust and Lochtonials, respectively. These are both really good starter items, but you’ll want to replace them once you get to Act Six for new gear with resists. For your belt, we recommend Darkness Enthroned with two jewels that have flat damage to spells on them. This alone will put your damage through the roof.
Jewellery can be difficult to pick, but the best option for easy leveling is to get two Haku rings. These are rings that grant flat reduced mana on every spell you cast. With two of them, you’ll rarely spend mana before going to a four or five link. This lets you add lots of links without screwing yourself over. Your amulet is more or less up to you. Karui Ward is a great option if you’re using a projectile, but otherwise just go for raw stats. Lastly, make sure you have at least two Quicksilvers for, well, moving fast.
Hopefully the above guide will be helpful to you. If you do not want to lag behind others due to lack of orbs, you can buy exalted orbs on U4GM.