Hey. So I did take my time ( I COMPLETELY forgot about it ) but here’s one of the decks I currently use.
The other one is the Vanar one there ( I didn’t modify it yet despite the advices I was given )
And the last one I use is the budget Reva deck mentionned in the link mentionned by locoblutaxt
I tend to focus on 3 decks at a time so those are the ones I use but I still occasionally use Lyonar, I’ll probably upload it later.
Your Magmar deck doesn’t make much sense tbh. You don’t have a clear wincon or theme, don’t run any good and reliable 4-drop like Taygete or Dioltas, run way too many buffs (and primordial gazer) but no minions that really profit from them (ranged, forcefield etc.). Amu and Vindicator with Vaath are questionable choices to begin with, same for Razor Skin since you aren’t running Zoo. You also aren’t running any removal, egg morph and thumping wave are staples and plasma storm is at least damn good right now, but not necessary especially for aggressive archetypes.
Well I tried making a Magmar list without any epics or legendaries. Like most budget decks it’s midrange with an emphasize on face. Try to get control of the board and judge when it’s best to abandon everything to go for the face. If possible hold on to a shroud/repulsor/egg morph whatever to get rid of any last ditch provokes.
The obvious upgrade are makantors.
I also have a epic/leg less kara deck. The main thing it is lacking is card draw since there are no spelljammers or l’kian. It will mainly rely on blazehound and cryo snowchaser recycling to maintain handsize. Remember that you can always suicide a chaser to return it to your hand then recycle it to fish for a stronger card when you think it will become too low impact. Otherwise its the same old kara, use maws and other cheap efficient creatures to get board control. I also added 2 razorbacks to give the possibility of finishing the game earlier before your card draw weakness rears its head.
Regarding your Vaath deck, I highly recommend crafting 3 mankantor before anything else. Your deck had a grow theme: moloki huntress and gro will have great synergy. I’d also recommend getting Taygete as soon as possible, due to how strong she is at dealing with big threats even with the recent health nerf to her.
For room, I’d recommend getting rid of Amu for Gro, Taygete for Earth Walker (slow grow minion), amplification, nature confluence and dragonbone golem for mankantor warbeast and moloki huntress (amplification has no real synergy, nature confluence is heavily RNG, and dragonbone seems more of a placeholder). Also, it’s probably best to add more removal, such as egg morph and thumping wave
Ooookay. I knew something was wrong with my deck 
Magmar just costs A LOT iMO, I can’t really craft all the needed cards without de ( which I like to avoid ) or grinding Gauntlet, which is a pain since it’s so long. I guess I’ll have to rely on other factions because spells aside, and even, I only have the 2 drops/basic cards you all suggested for my deck.
magmar is one of the cheaper factions
When you got spirit 
I have about 0 spirit right now.
