Realm of Nigeri - custom set

A

Arix

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Storyline
In a land originally inhabited only by dragons, tensions rise high between the dragons and humans while elves, griffins and dramen look on. A new human king has ascended and declared war on dragons after his father's death. Ahgjan, the Rathi of dragons, strives for peace between the two races, but until he finds it, his brother Arix and the rest of the dragon army must battle against the humans, while new threats awaken each day...

Keywords
Accelerate COST (COST: Put this spell on top of the stack.)
Terraform X - ABILITY (As long as you control at least X lands, ABILITY.)
Unchain COST (At the beginning of your upkeep, you may pay COST to unchain this until the beginning of your next upkeep.)
Boon X (Whenever this creature attacks alone, it gets +X/+X until end of turn.)

Themes
Most of Nigeri's magic and arcane knowledge is forged from the land. The main theme of the set is land.
Several minor themes are tribal (the war of the races), combat (the war itself), and a tiny theme of stack manipulation (arcane magic).

This is a custom block I'm in the process of making. Currently, I've completely finished the first and second sets, and am a third of the way through the third. Here are the legends from the first set:
Siena, the Fifth Mark - Siena, the most powerful of the five Teltaha Marks, possesses the ability to heal those even right at death's door. Unfortunately, her sentiment can often lead her to offer her powers to her enemies as well.
Paragon, Scourge of Time - Arix's human rider. After getting a special gauntlet from the dragon wizard Synacra, Paragon gained the ability to swing time around like a chain.
Seaiz the Merciless - The exalted leader of the harugala tribe of wolfmen, Seaiz didn't gain his position from being all smiles and kisses. He just smashed his way through, destroying anything and anyone standing in his way. And he's proud of it.
Arix Odragc - The leader of the dragon army and brother of the Rathi. Arix is not only the one who rallies the dragons to war, but in his spare time he enjoys training up younger, less experienced dragons into stronger fighters.
Moondance - An elvish shaman who can speak to the land. With her touch, the land grows and flourishes, and in return, it protects her from harm.
Astrophe - Astrophe, one of the craziest elves in Nigeri, gained her ability to shapeshift into other creatures after meeting up with the dragon Rathi.
Lord Rathi Ahgjan - The grand ruler of all Nigeri's dragons. Although Ahgjan is one of the most powerful magic wielder in the land, his power can often lead him to hurt himself while using it. His brother Arix is more often than not the only one that can stop him from seriously injuring himself*.
Ragnarok, Sword of Justice - The first of the three legendary blade entrusted to the elven scholar Megid. Ragnarok is not only a fierce blade in terms of sheer power, but also contains a magical aura protecting its wielder from harm.
Tome of the Rathi - Ahgjan's mythical tome, a volume passed down through the dragon royal family since the very first Rathi. With each generation, new pages are added to the book to give all the magic of the royals.

Finally, three terms in there you may want to keep in mind:
Rathi: The king of the dragons.
Teltaha: A breed of dragon from the southern islands.
Mark: A select few of the most powerful Teltaha from across the ages.

*Notice how this is represented in the cards - with only Ahgjan out, he hurts himself whenever he gets pumped. But with Arix there to help him, you can use Arix's ability to stop that.
 
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