Before I say anything, I want you to know that I'm not trying to be like "oh hey, you should use my deck and not yours". I'm simply offering another suggestion that you can try if you want, get ideas from if you want, or totally ignore. Everyone has their own play-style and as long as it's fun, you're good. Like you said, you're not looking for an undefeatable deck just a 2nd deck.
I used to have a deck very similar to yours, but tweaked it to get one slightly different. I came to the conclusion that my deck was too spread out and not focused on a single strategy and a couple cards. By narrowing my deck down, it seems to have made things easier on me and my deck more of a success.
Here, I'll post a 33-card deck that is very similar to my deck except without any unbuyable or upgraded cards. My actual deck has 32 cards. It has an Eternity and 2 Shards of Readiness but 1 less Time Factory and 3 less Reverse Times; as well as about half the deck upgraded. So, since I have a half-upgraded "sloppy" deck, I'll just use your format for posting my deck. It would be as follows:
33 cards
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[Gravity Mark]
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Resources (16)
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Bone Pillar x9
Time Factory x7
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Monsters (7)
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Mummy x6
Chimera x1
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Spells (6)
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Reverse Time x6
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Equipement (4)
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Bone Wall x4
Deck Price: 765e (quite a bit cheaper than yours, so easier for new players)
Mummies are a unique and complicated monster. For a cost of only 4 quanta, you have an attack power of 5 with the possibility (and in this deck, a probablity) of "upgrading" it to a Pharoah (thus sending out a 9-cost monster for 6 quanta), which can then produce Scarabs, which can devour other monsters. It didn't take long for me to realize that I could make a pretty decent, valid deck that utilizes ONLY 1 monster: the Mummy. With Mummies, you have 2 options form just 1 monster. You can either A) spam high damage from pure Mummy-power, or B) take that Mummy back to it's glory days as a Pharaoh so it can summon Scarabs to do the trick.
But to fully take advantage of the Mummy card, you need Reverse Times (and/or Eternity). But Reverse Times are themselves a "fun" card with some perks. In addition to turning Mummies into Pharaohs, the ycan also turn Skeletons into random monsters (as you seem to enjoy)...but that's not all. They can also send an opponent's monster back to the deck. This can prevent a possible upgrade it was given, prevent it from using a skill on the next turn, or simply drain the opponent's quanta by having to use it again. With Eternity (which I highly suggest you use; and you can justify less Reverse Times if you do) you can even use it to stall the AI into drawing the same card every turn. Because of this, I decided I wanted 6 Reverse Times, as long as I didn't have Eternity.
Realistically, you will normally have at most 3, but usually 2 or less Pharaohs out and active before the end of the duel. Having 6 Reverse Times or Eternity is just to play with the opponents' monsters.
Bone Walls are a good enough shield that any other shield really isn't needed for any reason. If they have a LOT of monsters, chances are, they aren't hurting you much anyway or the Scarabs can eat them (assuming you're focused on getting those Scarabs out ASAP). Also, the Scarabs should be enough to keep that Bone Wall up if necessary (thus negating the Plagues) and Boneyard is unnecessary, in my opinion, because who wants to spam their field with monsters with 1 attack? Don't even tell me Scarabs can eat them...you don't have enough
for that in either your deck or mine.
Speaking of
, if you're to have a lot of Scarabs you'll need a steady supply of it, but it won't always be used, so we can throw in a Chimera to use any leftoever
in sticky situations. Sometimes the opponent will throw up a shield that you can't get past or don't have the time to. Don't worry. That's what Chimera is for. I strongly urge you to use one. But you should have more than just 1
pendulum for that...hmm...I suggest a
mark, honestly (even if you don't use Chimera). And just scratch all the pendulums. Maybe turn your
pendulums into half Time Factories, half Bone Pillars?
And finally, Shards of Readiness. There are none in your deck. Maybe you don't have any. Maybe you didn't want to use unbuyable cards. But in any case, I suggest you use them as soon as you get them if you can. I only have 2 (just got my 2nd one ^^) and I love them to death.
monsters can use their skills immediately and twice when using one. O.O What??? Yeah, you heard me right. Pharoahs can summon 2 scarabs FREE -- 3 if used after they summon one for 2
first. And Scarabs can devour 3 monsters in 1 turn, and continuously devour for free (saving that
for other Scarabs or Chimrea). They are pretty sexy cards, and I even took out a Time Tower from my deck for one because what do my Pharaoh need
for anymore anyhow?
Well, I hope you gathered something form my lengthy post. Decks with Mummies and Bone Walls are really fun to play with and I hope you have fun. Power to the
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trio decks!