Hello,
This is my first guide on MobaFire, about Brand, The Undying Vengeance

So I find that Brand is used better as a burst caster, meaning when you find yourself in a team fight late game, smash the keyboard and you'll always deal tones of damage. In this guide I will try my best to explain when and how to use his moves and go into more detail about his item build.

First off, like any other carry try your best to last hit minions, its really important that your able to farm gold effectively or you'll find this build can be very difficult to complete. A good combo when farming large creep waves is to use Pillar of Flame then Conflagration.

Now for items. The first few items are simple, Doran's Ring, Boots of Speed and an Amplifying Tome. These first items are just to give a boost to your ability power, well except the boots. From there buy a Blasting Wand which should be built into a Void Staff after you've purchased your Sorcerer's Shoes. The Void Staff is very helpful early-mid game because of its Magic Pen. and Ability Power boosts.
Next purchase a Rod of Ages, I normally buy a Ruby Crystal first and then Catalyst the Protector and then a Blasting Wand. If you have been CSing correctly, by this point you should have enough gold for a Hextech Revolver without needing to buy any of it's "ingredients". Build your Will of the Ancients and buy a Giant's Belt, now you should have no items slots left, that's ok, just continue to farm until you have enough gold for a Rylai's Crystal Sceptre.
Sell your Doran's Ring and then purchase Kage's Lucky Pick, build this into your Deathfire Grasp. The reason I say buy one is because of it's cooldown reduction and it's unique passive, with your Rylai's it becomes more effective.
Last but not least sell your shoes and purchase a Needlessly Large Rod, which can be built into a Rabadon's Deathcap.

If you find you're having difficulty try buying elixirs they always help for me.

Basically when in a team fight, kinda skirt around the edge dealing damage to the other carries on the other team and then focus on the tanks, if their is a support go for them first, that is of course they're not a tank XD
Whenever you can grab blue its very very useful when in a team fight, mostly because of its cooldown reduction and also it's mana regen. I have found that when their is an enemy that has a stun you can be shut down easily, so try to keep your distance from those types of champions.
The pattern you should follow when in a team fight is; W, Q, E, R (Repeat if and when you can) I find it works really well.
REMEMBER SAVE YOU ULT FOR MULTIPLE ENEMIES!!

I have suggested Heal and Ignite, but Flash and Exhaust are good spells to use as well. Heal for those team fights and ignite for fleeing enemies, also flash for escaping and exhaust to slow your enemies for more damage. Try different combinations of these spells to see which ones suit you for your type of game play.

So basically with Brand go for heavy ability power and magic pen. with some cooldown reduction and mana regen.