Ah yes the much loved but mostly hated neutral archetype. The key to mechazor is a combination of consistency and a back up plan that meshes with mechs. Ideally you want cheap draw power to search for mechs, and positional changers to get a dispelled mechazor back in the mix. There is always the question of how many mechs to run, usually you run 5/6 (No Alter Rex does not count) choosing between chasis or zor depending on what your curve looks like. If you have exceptional draw power you can just skip chassis and zor, or if your deck does not have much draw power sometimes you just need them all. And then most importantly you need a clever name for your deck.
Ghost in the Shell: Faie
Ghost Seraphim and Robots…well I think the name is clever.
Vanars rude control shell is always a solid chassis. Hearthsister is great for a dispelled mechazor, and Spirit of the Wind+mechazor is a very rude 6 mana play when you use helm as your final mech summon. Spirit of course naturally combos with ghost as well.
Ancient Aliens: Zirix
Astral Phasing plus thunderhorn, frenzy, or a dispeled mechazor leads to a fun time. Rest is vet staples.
MecHorn
Heh, see what I did there?
Gobs of draw power and a ramp engine leads to very consistent and quick mechazors, toss on magmars staples and deci/spike combo as your back up plan. Opted out of thump/rush package as mech/deci should be enough win cons, and I wanted to fit chassis for consistency, bender for walls, and plasma since it shuts down certain decks.
Evangelion: Cass
Creepy biomechs and “Angels” just have a real Abyssian feel.
Nethermeld is a natural solution to a dispelled mech, and of course combos very nicely with thunderhorn/grasp, and cass’s bbs alone is usually all you need to get good use out of it. Then the deck has desolator/revenant spam as a back up plan.
Voltron: Argeon
I call it Voltron because Lyonar are totally paladins…
Titan provides an excellent excuse to load up on all the mech units in lieu of spells, creating a very consistent mech deck with a big surprise in store should the game run late. Its non mechs are all excellent spell alternatives and solid cards that usually just don’t make the cut due to immolations existence. And of course Magesworn was also basically made for the deck as well.
Gundam: Kaleos
Ninjas and Giant Mechs, songhai has a very oriental feel to it, so it gains the most widely known mech name that is a Japanese classic.
Max mobility makes dispelling mechazor pretty much pointless. The deck also really takes advantage of its crazy position manipulation with all of its minions creating a very aggressive mechazor deck.
Edit:
Probably going to run jammer or blazehound over thief.
I have made it to S rank for many seasons now, with occasional top 50s when I had the time to play competitively. Since I have not had time to start streaming like I want, I figured I would just share some of my stuff each week and get my name out there so the community knows me a little better for when I do eventually get around to it. I have a lot of new stuff I plan to put out, and will get a new master thread up for the expansion when I can, in the mean time check out my previous thread: