Najeela and her 5 color army (EDH / Commander)

Najeela, the blade-blossom is the leader of all manner of warriors and this deck reflects that. Your goal is to amass an army of elite warriors and kill as many opponents as possible all at once. To help with this we have cards that give extra turns and buffs.
Creatures that have specific roles:

Grimgrin, the corpse born is only to be played when there are trouble creatures in the way.

Brutal hordechief is in here to control blocks and help get additional damage in.

Grand Warlord Radha is to get additional mana to get extra turns and attacks.

Mindblade Render to give you additional card draw however keep in mind with this deck it is easy to over draw with him.

Mirri, Weatherlight Duelist is to combo with brutal hordechief to control blocks together or alone.

Neheb, the Eternal to provide extra mana to get extra turns.

Radha, Heir to Keld extra mana.

Rhys the Redeemed to enlarge your army of tokens.

Alesha, Who Smiles at Death to bring additional damage and value to your board.

Surrak Dragonclaw provides some additional protection to your creatures.

With the exception of Final Fortune you will need to insure you have 2-3 blue mana to cast your extra turn cards and remember that Final Fortune is only to be used if you are going to die and have to risk it all or as the finisher.
Cruel Ultimatum Mystic Confluence and Titanic Ultimatum are all about netting value these cards can help you create massive swings or just save you in general use them wisely.
Elspeth, Sun's Champion and Elspeth, Knight-Errant are your most important planeswalker you need to get the ultimates off whenever possible so protect them.
This deck does have a severe weakness to flying so whenever possible deal with flying asap.
Ajani, Wise Counselor is against other aggressive and token decks as you will find the life gain.
Always try to be the aggressor as you have many ways to buff your creatures and the lifegain in this deck though scarce is extremely powerful and can net you alot of life and most of it is able to be tutor for.