For skills, Lightning Blast is the "core" or spam ability. By equipping a Birch Wand or similar equivalent you can keep the mana cost of Lightning Blast at 0. With very fast PrefixCast Speed you're able to deal respectable damage to single target and high damage to multiple targets. This will also grant you Ward per hit which furthers the benefit of PrefixCast Speed since it doubles as a defensive boost as well. Convergence (Lightning Blast skill tree) is not taken by default in this build, but you can shift points around in the specialization if single target bosses are taking too long or you want to clear them faster. This can be helpful towards the end of the campaign against certain bosses where the points can then easily be reattained quickly in Monoliths.
Teleport will grant Ward and additional damage on use. This will be available on cooldown provided you have a Birch Wand (or similar Wand) equipped. Giving the build great mobility, survivability and burst. For navigating the campaign, Teleport and Lightning Blast are capable of carrying you through. However, the other skills will increase clear speed and enjoyment.
Static Orb has a relatively heavy cost as you level. This is amplified since PrefixMana and PrefixAttunement are not stats being stacked in this build. You will want to reserve this for high health enemies or bosses during the leveling process. As you progress and get better equipment it will become part of the regular rotation as the mana cost can then be sustained. Static Orb will proc Lightning Aegis which increases damage output by 50% and provides a 25% damage reduction. Against bosses you'll want to cast several Lightning Blast and rotate a single Static Orb in to maintain the buff. You will not need this skill to clear trash until later stages and at this point you should be able to sustain the cost and have a general idea of which enemies to use it against.
Frost Wall will be transformed to PrefixLightning Damage (unless you're playing the cold version) and walking through the wall will proc a number of benefits. You'll launch Lightning Blast at multiple enemies, gain Flame Ward(which we'll discuss shortly), PrefixMovement Speed, Ward and more. The general use for this is to cast it ahead of you, walk through it while holding Lightning Blast down and work your way through the enemies. Use Teleport to reposition or move to the next objective and repeat. At later stages simply walking through this will kill many enemies.
Flame Ward will also be transformed toPrefixLightning Damage and provides both damage reduction and a damage boost. Eventually this will proc simply by walking through your Frost Wall. At this point you will rarely actively cast it but it's recommended to leave it on your loadout so you can boost your Ward or in the rare emergency situations it's needed.
*The skill rotation will vary a bit as you level or obtain new gear increasing your sustain. The final rotation will use Teleport to arrive at your location, Frost Wall which you'll walk through to proc Flame Ward and Lightning Blast. Cast Static Orb as you walk towards enemies and follow up with Lightning Blast until they're defeated. Repeat the process skipping Teleport unless you need to reposition for high health enemies or bosses.
