So a bunch of the planeswalkers and legends leaked on a really low quality image, but we've been able to parse most of them.
Karn, the Great Creator 4
Legendary Planeswalker - Karn
Activated abilities of creatures your opponents control can't be activated.
+1: Until your next turn, up to one target noncreature artifact becomes an artifact with power and toughness each equal to its converted mana cost.
-2: You may choose an artifact card from outside the game or in exile, reveal that card and put it in your hand.
{5}
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Gideon Blackblade 1WW
Legendary Planeswalker - Gideon
As long as it's your turn, Gideon Blackblade is a 4/4 human soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to it during your turn.
+1 up to one other target creature you control gains your choice of vigilance, lifelink, or indestructible until EOT
-6 exile target nonland permanent
{4}
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Chandra, Fire Artisan 2RR
Legendary Planeswalker - Chandra
Whenever one or more loyalty counters are removed from ~ she deals that much damage to target opponent or planeswalker.
+1: Exile the top card of your library. You may play it this turn.
-7: Exile the top seven cards of your library. You may play them this turn.
{4}
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Nissa, Who Shakes the World 3GG
Legendary Planeswalker - Nissa
Whenever you tap a forest for mana, add an additional G.
+1: Put three +1/+1 counters on target noncreature land you control, untap it, it gains vigilance and haste, and becomes a 0/0 elemental creature that's still a land
-8?: You get an emblem with "lands you control have indestructible", then search your library for any number of forests and put them into the battlefield tapped.
{5}
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Domri, Anarch of Bolas 1RG
Legendary Planeswalker - Domri
Creatures you control get +1/+0.
+1: Add R or G. Creature spells you cast this turn can't be countered.
-2: Target creature you control fights target creature you don't control.
{3}
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Ral, Storm Conduit 2UR
Legendary Planeswalker - Ral
Whenever you cast or copy an instant or sorcery spell, ~ deals 1 damage to target opponent or planeswalker.
+2: Scry 1.
-2: When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
{4}
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Sorin, Vengeful Bloodlord 2WB
Legendary Planeswalker - Sorin
As long as it's your turn, creatures and planeswalkers you control have lifelink.
+2: ~ deals 1 damage to targer player or planeswalker.
-X: Return target creature with converted mana cost X from your graveyard to the battlefield. That creature is a vampire in addition to its other creature types.
{4}
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Teferi, Time Raveler 1WU
Legendary Planeswalker - Teferi
Each opponent can cast spells ibkt any time they could cast a sorcery.
+1: Until your next turn, you may cast sorcery spells as though they had flash.
-3: Return up to one target artifact, creature or enchantment to its owner's hand. Draw a card.
{4}
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Nicol Bolas, Dragon God UBBBR
Legendary Creature - Bolas
~ has all loyalty abilities of all other planeswalkers on the battlefield.
+1: You draw a card, each opponent exiles a card from their hand or a permanent they control.
-3: Destroy target creature or planeswalker.
-8: Each opponent who doesn't control a legendary creature or planeswalker loses the game.
{4}
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Niv-Mizzet Reborn WUBRG
Legendary Creature - Dragon Avatar
Flying
When ~ enters the battlefield, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in any order.
6/6
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Roalesk, Apex Hybrid 2GGU
Legendary Creature - Human Mutant
Flying, Trample
When ~ enters the battlefield, put two +1/+1 counters on another target creature you control.
When ~ dies, proliferate then proliferate again.
4/5