So, to multiple people's amazement, they are nailing down a lot of details about the various walkers. I dread Elspeth's entry, because we've already had established details regarding her. For that matter, the same can be said of Tezzeret. Anyways, without further ado, I give you the planeswalker bios. I'll update as the info is given to me.
Garruk Wildspeaker (Primal Hunter, Relentless, Veil-Cursed)
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Human Male, Age 36
Height/Weight: 8'2", 480lbs
Style of Magic: Green-mana based animal magic, especially summoning
Favored creatures: Apex forest predators such as baloths
Favored spells: Invocations that magnify might, size and ferocity
Distinguishing features: Wears a helmet that used to belong to this father's killer. Wields a weapon made from the claw of an ursoth, a Shandalar beast.
Overview: Garruk is a hunter and summoner who believes the way to revere nature is to live like a predator. He has a dark side though - one that fears what happens to a predator when it begins to enjoy the kill.
Quote: "They call me a monster. They're wrong. I am a thousand of them."
Allies: None
Enemies: Liliana Vess. While hunting on Shandalar, Garruk fought necromancer Liliana Vess. She used a relic called the Chain Veil to defeat him. Garruk's magic is now corrupted by the Veil's curse. Now he hunts her, determined to make her lift it.
Associations: Jace Belern. Garruk knew Jace was associated with Liliana and demanded that he reveal her location. Because Garruk wouldn't take "I don't know" for an answer, Jace named a random plane, prolonging Garruk's search.
Green mana. It's what a growing boy needs...
Liliana Vess (Shadow Caller, She of the Veil)
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Human Female, Apparent Age 26, Real Age over 200
Height/Weight: 5'9", 140lbs
Style of Magic: Black-mana based necromancy
Favored creatures: Ghouls, Demons, Imps
Favored spells: Reanimation of the dead and spells that steal life-force.
Distinguishing features: Lines etched into her skin glow violet when she channels mana. Often wears a metal headdress.
Overview: Ravishing, capricious and utterly selfish, Lilian Vess is a formidable necromancer. When her power began to wane, she made a deal with four demons to secure her youth and dark might. Unwilling to serve them, she now seeks a way out of her infernal bargain.
Quote: "Death is no excuse for disobedience."
Allies: None
Enemies: Garruk Wildspeaker. While retrieving a relic for one of her demon masters, Liliana crossed and fought Garruk and used the relic - the Chain Veil - to defeat him. Liliana now seeks to use the Veil to destroy the demons to whom she is indebted.
Associations: Jace Beleren and Nicol Bolas. While working for a cabal on Ravnica, Lilana made a deal with the dragon Nicol Bolas and was involved with Jace Beleren, but in the end abandoned both for her own interests.
How crass. You never ask a lady her weight.
Jace Beleren (Illusionist, Memory Adept, Mind Sculptor)
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Human Male, Age 23
Height/Weight: 5'10", 160lbs
Style of Magic: Blue-mana based mind magic
Favored creatures: Wizards, Illusions and Mimics
Favored spells: Intellect enhancement, memory manipulation and countermagic
Distinguishing features: Favors a hooded cloak. Often seen with white markings on his chin and right cheek.
Overview: Jace is a prodigy of mind magic, far too smart for his own good and able to peer into the minds of others. But when you can change others' minds as well as your own, how do you know what's real?
Quote: "It's good to learn from your failures, but I prefer to learn form the failures of others."
Allies: None
Enemies: Chandra Nalaar, Tezzeret. While working for the artificer Tezzeret's cabal, Jace pursued Chandra to retrieve a stolen scroll and the two became rivals. Later Jace faced and defeated Tezzeret, then assumed control of the cabal's resources on Ravnica.
Associations: Liliana Vess, Garruk Wildspeaker. Jace and Liliana were formerly lovers. When Garruk began to hunt Liliana, intending to force her to remove the curse she put on him, he sought out Jace, knowing of their association.
Kind of surprised Chandra was declared a full blown enemy considering Garruk STRANGLED THE CRAP OUT OF HIM.
Ajani Goldmane (Pride's Claw, Vengeant One)
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Leonin Male, Apparent Age 30
Height/Weight: 6'6", 250lbs
Style of Magic: White-mana based aura magic
Favored creatures: Other leonin, champions of light
Favored spells: Enhancements and rituals that strengthen others, not himself
Distinguishing features: Blind in left eye. Carries double-bladed axe, one blade which belonged to his brother Jazel, murdered by an agent of Nicol Bolas.
Overview: The leonin Ajani Goldmane wields magic that conjures the soul's light in others - but not his own. He is a master auramancer, enhancing the life-force of allies as he defends them with absolute loyalty. Ajani is the only planeswalker to have faced Nicol Bolas in single combat and lived.
Quote: "One's blade is only as sharp as one's conviction"
Allies: None
Enemies: Nicol Bolas. When Ajani's brother Jazel was murdered, Ajani followed a path back to the dragon mastermind Nicol Bolas. The two faced off at the Maelstrom on Alara, where Ajani conjured Nicol Bolas's double, driving the dragon to a stalemate.
Associations: Sarkhan Vol. On discovery of Jazel's lifeless body, Ajani's Planeswalker spark ignited, sending him to nearby Jund. There he met dragon-worshiping Planeswalker Sarkhan Vol, who encouraged him to channel his rage to planeswalk home.
So, we get a gander at Ajani... and he is apparently 30. Which is interesting, since he's always been described as a young sort. So what that tells me is Leonin have a longer lifespan than humans on average.
Also, weird that we count Sakrhan as an associate but not Elspeth.
Chandra Nalaar (The Firebrand, Ablaze)
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Human Female, Age 20
Height/Weight: 5'6", 130lbs
Style of Magic: Pyromancy
Favored creatures: Creatures born or made of flame
Favored spells: Conjurations of heat and flame
Distinguishing features: Wears goggles that enable her to see through her own flames. Often wears a mana-enhancing gauntlet on her right arm.
Overview: Chandra is a pyromantic prodigy - a natural talent with fire magic - who despises authority. Her flames run so hot that they threaten to consume her. She seeks a way of controlling her own fire in a way that doesn't dampen her fierce individualism.
Quote: "Who'd want to ignite things one at a time?"
Allies: Gideon Jura. When Chandra's adoptive home plane was threatened, hieromancer Gideon became Chandra's reluctant ally, guiding her through trials that led to the liberation of her people.
Enemies: Jace Beleren, Sarkhan Vol. Jace was sent to retrieve a sacred scroll Chandra had stolen. The scroll contained a map that led them both to Zendikar. When they arrived, the dragon-worshiping Planeswalker Sarkhan Vol, an agent of Nicol Bolas was waiting. Only by combining their efforts could they overcome Sarkhan.
And Chandra.
These details seem a bit out of sync with the published material, for one I'm fairly certain she was supposed to be closer in age to Jace. For another, she was described as being very tall for a woman.
I'm also surprised that they listed Gideon as her ally and Sarkhan as her enemy.
Nicol Bolas (Mastermind, Emperor, Ancient One)
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Male Dragon, Aged over 20,000
Height/Weight: 60 feet long/wide, 60 tons
Style of Magic: Master of blue, black, and red mana
Favored creatures: None - any that exploits a foe's weakness
Favored spells: Mind attacks and murderous sorcery
Distinguishing features: Two long, curved horns - unusual for a dragon. Between the horns floats an ovid object of mysterious origin.
Overview: Nicol Bolas is among the oldest and most evil beings in the Multiverse. He has lived for over twenty millennia and has survived countless cataclysms. Nicol Bolas once had immeasurable power and has a grand scheme for reacquiring his godhood.
Quote: "The finest pawns are those with pawns of their own."
Allies: Sarkhan Vol, Tezzeret. Sarkhan Vol was driven mad and became a servant of Nicol Bolas. The artificer Tezzeret was pressed into Nicol Bolas's service and was later rescued and rebuilt by him after being left for dead by Jace Beleren.
Enemies: Ajani Goldmane. When Nicol Bolas sought to seize Alara's mana, Ajani confronted him and drove him to a stalemate. Nicol Bolas left the plane with only part of the prize he had planned to take.
Associations: Liliana Vess, Jace Beleren. Nicol Bolas seems to have special plans for Jace and made a deal with Liliana that involved manipulating the mind mage.
And Bolas, with small details that aren't quite exactly right in a number of places. Nothing terribly egregious, but just enough to go "Now, wait a tick..."