Alright, I think Theldin’s post a few below this is the main one to follow now. I like the spreadsheet layout. Thanks Theldin for putting together a nicely organized system so I’ve deleted my main post and will direct everyone to scroll down half a page. 
(Also, Thanks everyone for contributing.)
Mod Edit: Changed title to reflect content, and added sticky
My Nissa is level 10 now. I’ll try to track it from here on out to help out.
lvl 20 - Nature’s Gift lvl2 (+4/4)
Active Spreadsheet can be viewed at this link…
https://docs.google.com/spreadsheets/d/ … sp=sharing
Anyone that could assist by posting any of the empty spots would be appreciated.
Also, if any of the areas highlighted ‘Informed’ can be confirmed by another person, would be appreciated.
Please rate this post if you like the chart. Thanks!
Snippet of it in progress…
Level 26 3rd ability. 2 levels away for me.
Nissa’s level 8 gives the second level to Nature’s bounty; I think it was level 6 that boosted green by +1 (to a total of +2)
Chandra level 8 grants level 2 Flame Shot - Deal 3 damage to your opponent
Level 9 - Add 1 more creature to your deck
Level 10 - Red match now gives 1 more mana
Nissa
Level 10 - Hp increase by 4
Chandra
Lvl 18 HP +4
Lvl 19 +1 support to deck
Lvl 20 scorching strike level 2 (3 dmg)
(I may have lvls 19 and 20 mixed up. Unlike mpq, the level up button works way too fast)
Lvl 21 HP +4
Lvl22 black mana +1
Lvl 23 +1 creature to deck
Lvl 24 +4 hp
Lvl 25 I think improved regen
Lvl 26 +4 hp
Lvl 27 fireball lvl1
Lvl 28 +1 spell to deck
Lvl 29 +1 white mana
EDIT: Lvl 30 improved regen
Gideon:
Lvl 3: improved regen
Lvl 4: HP +4
Lvl 5: +1 creature to deck
2
1
0
1
0
Edit:
Lvl 32 Nature’s regrowth is lvl 2
33 Hp +4 (74)
34 +1 support (spell or support… forgot it)
35
36 regen
37 Hp +4
38 Nature’s bounty lvl 3
39 +1 creature
40 +1
41 regen
42 Hp +4
43 regen
44 1 spell to deck
45 Nature’s gift lvl 3
46 1
47 Hp +4
48 regen
49 Hp +4
50 convert 20 gems to green
Love this spreadsheet Theldin, it’s very helpful. I’ll contribute whenever I can!
Gideon levels
27 Regen
28 HP+4
29 Regen
30 Spell +1
31 HP+4
32 Champion lvl 2 (+4/+4 Berserk Lifelink) (Costs 12)
33 Spell +1
34 HP +4
35 Creature +1
36 Regen +
37 HP +4
38 Sharp Eyes 3 (+1/+1 Vigilance and Flying)
39 Regen
40 HP +4
41 Regen
42 Regen
43 HP+4
44 Call to Arms 3 Costs 12 (+3/+3 to all your creatures)
45 Support +1
46 HP +4
47 Regen
48 Red +1
49 HP +4
50 Champion level 3
Speculations were confirmed
Thanks to everyone who has posted information to assist with the spreadsheet.
We’re going to need some new icons.
:whiteflag:
Max level is 50, and that’s when you get the 3rd level of the 3rd ability.
Chandra (and I suspect this is a pattern for all the origins planeswalkers) ends with +2 to one type of mana, +1 to two types, and 0 to the other two.
Strangely (if you know the magic color wheel) her secondary colors are W & G, not B & G.
If interested in this. Nissa’s level 5 regen upgrade takes her from 6hp/5min to 7hp/5min
Liliana
Level 11: HP +4
Level 12: regen improved
Level 13: +1 support
Level 14: grave mist
Level 15: HP +4
Level 16: regen improved
Level 17: +1 blue mana
Level 18: regen improved
Level 19: HP +4
Level 20: gravemist 2
Level 21: regen improved
Level 22: +1 spell
Level 23: HP +4
Level 24: +1 white mana
Level 25: +1 creature
Level 26: raise dead 1
Level 27: regen improved
Level 28: HP +4
Level 29: +1 support
Level 30: HP +4
Level 31: regen improved
Level 32: HP +4
Level 33: raise dead lvl 2
Level 34: +1 red mana
Level 35: regen improved
Level 36: HP +4
Level 37: +1 green
Level 38: corrupt lvl 3
Level 39: +1 spell
Level 40: HP +4
Level 41: +1 black mana
Level 42: HP +4
Level 43: +1 creature
Level 44: HP +4
Level 45: gravemist lvl 3
Level 46: regen improved
Level 47: +1 support
Level 48: HP+4
Level 49: regen improved
Thank theldin
Edit: 2/29
Changes coming due to update
Gideon now earns +1 Black instead of +1 Spells at level 33
Liliana now earns +1 Black instead of +1 Regeneration at level 41
-ignore this-
Magic color wheel is 
(WUBRG), where adjacent colors are “allied” colors.
Chandra’s secondary colors are correctly set as Black and Green.
TBH they should really be set as RUGBY (yellow is white!) so it can spell rugby. What were they thinking!?
Chandra:
Level
36: HP +4
37: Improved Regen…
38: Flameshot Level 3
@Level 38, Flameshot now deals 3 damage AND destroys a 3x3 section of the mana grid. So, no chance of getting 4 damage to your opponent. I’m going to assume that Level 3 Scorching Strike will also offer a 3x3 grid explosion and not increase damage to 4 againsta target. It’s a shame. I was hoping for that. 