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[Akriloth]

This has been removed by the author.

[Aves]

Using your 60 card deck as a starting point, there are 3 ways to transition: Mono , Mono , and Duo /:life.

For the monos, an easy first step would be to just cut the deck in half along element lines.

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5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5c2 5c2 5c2 5c2 5c2 5c2 5c7 5c7 5c7 5c7 5c8 5c8 5c8 5c8 5c8 5c8 5c9 5c9 8pn

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5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f3 5f3 5f3 5f3 5f3 5f3 5f5 5fb 5fb 5fb 5fc 5fc 5fc 5fc 5fc 7di 7di 7di 8po

After that, it's a matter of streamlining-- pick out what key ideas you want and focus around there. Is it fast damage with some supportive spells? For fire, focus around the phoenixes with a few rage potions and deflagrations thrown in. The life deck by itself is actually pretty close, but it lacks some high hitting damage, so maybe a dragon or two swapped in would round that out.

For the duo, it's more of the same; you also have to pick out what win condition/key idea you want. Ask yourself, what sorts of cards would I want 6 copies of in a 30 card deck? Work from there with some supporting cards (1-3 copies per) and quanta balance around that skeleton. I'll leave it to you to play around with this.

If you want ideas on different deck options, don't hesitate to ask about those too!

[Espithel]

The less cards in your deck, the more consistent it is. This is why the vast majority of decks stick to 30 cards.  The more you add to your deck, the weaker each vector of attack your deck is.

In short, your fire deck is really hurting your life deck, and your life deck is really hurting your fire deck. Pick one or the other.

As for why you shouldn't use both, the issue with fire and life is that it is extremely highly non-synergistic, and this is not helped with life being a contender for worst element in the game. For any fire/life deck you make, it could probably be improved by removing one of the two elements.

But, if you absolutely had to combine the two, I can see really only two possible decks.
(These decks are super rough outlines.)
You either splash fire for deflags and get a deck like this:

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5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bs 5bt 5bt 5bt 5bu 5bu 5bu 5bu 5bu 5bu 5c5 5c5 5c7 5c7 5c7 5c7 5c7 5c7 5f6 5f6 5f6 8po

Use adrenaline on frogs for 6 life 12|3s, use staffs to not die quickly, use deflag to blast away shields/weapons you dislike, emerald dragons as mana sinks. Normal Adrenafrogs is extremely fast, but dies to cards such as dimensional shield and eternity. The additions of deflag allows you to answer shields.

Or splash shards of gratitude and get a deck like this:

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5cq 5cq 5cq 5cq 5cq 5cq 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f0 5f4 5f4 5f4 5f4 5f4 5f4 5f5 5f5 5f6 5f6 5f6 5f7 5f7 5f7 5f8 5f8 5f8 5fb 5fb 5fb 5fb 5fb 5fb 8pn

Kill everything the opponents play, stall the came to a crawl. Once you've done that, win the game by either whittling them down with fahrenheit, burning their face off with fire bolts (6 fire bolts at 75 quanta deals over 100 damage), or simply waiting 23 turns and decking your opponent out with your bigger deck.

Note that this deck is a strictly inferior version to a fire/light stall. The additions of miracle and sanctuary, and less often reflective shield, morning glory, and Shard of Divinity, makes fire/light one of the deadliest decks in the game.

Now, as you probably don't have six SoGs lying around, and the fact you want to grind bronze, I'd go with the first deck. Against AIs weaker than Gold/FGs/Plat, you want really fast decks. You earn money faster that way.
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Can I ask what attracted you to fire and life in the first place? I'm curious, and I think I could help you more if I knew.

[UndeadSpider1990]

First thing I would do is create a 30-card trimmed down version (think of it this way, you get double the chances of drawing your upgraded cards). Post an update to this thread with that, and go from there

Also, do you have any weapons or shards from / ? They could open up new options.