(ancient) rainbow vs. arena (Gold and Platinum)

[NotoriousDAVE]

Ok, here is what I've got right now:

by NotoriousDAVE

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4sa 4sa 4sa 4sa 4sa 592 5f8 5lm 5rp 5rp 5rp 5rp 5up 621 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6s1 6s1 6u3 6u3 6u6 717 71b 71b 74b 74b 77f 7am 7am 7gq 7gr 7n2 7n3 7q5 7q5 7q5 7q5 7q8 7q9 7q9 80h 80h 8ps

The two blank things are upgraded shards of serendipity.

It's based on the ancient yet ubiquitous unupped FG rainbow of ScaredGirl from back before time was time.  Turns out date relevance is not a strong suit of my forum searching skills, whatever.
That said, I've been trying to modify this beast to work in the arena, where the payouts seem better.  While I can do very well in up to silver with this, excepting fire rush decks that eat my lunch, gold and platinum just spank me, regardless of their strategy. 

I've got a tendency to throw stuff in to deal with things that bother me (sanctuary vs. black hole, purify for poison) and even though intellectually I know that I'm just slowing myself down watching my deck lose to such a thing one win from the special spins is heartbreaking, so I try to cover every eventuality and as a consequence lose even more often. 

A tough edit would probably help, but a new direction would probably help more.  I've got most of a ROL/Hope deck upgraded that, while it loses a LOT, is a net money maker, so I can push into more upgraded cards to change the plan, but my inability to reliably win in arena means I have next to no shards of anything. 

Also, nearly half the weapons still seem to be eluding me (I have 8 eternities, 2 upgraded but still zero poseidons for example) so advising me to load up on vampire daggers or arsenics is just something I cannot act on.

Thanks for the time and attention

[dragonsdemesne]

I know the feeling; I love to play this style of deck as well, and started with something very similar, and I like to throw in everything, including the kitchen sink, but even in a 60 card deck like my usual grinder is, it just isn't possible.

The one I use right now looks like this: http://elementscommunity.org/forum/index.php/topic,27926.msg438946.html#msg438946

except that since then, I changed the pendulums back to quantum towers (getting 1x pend and nothing else to start sucks balls) and changed the shockwave to an amber nymph, which I got from the oracle since then.  The deck is a bit slow sometimes, and could possibly benefit from more towers (bone wall would be one of the first cards to go) but if it has a reasonable quanta start, it can beat most decks.  The worst opponents are cremation rush, poison decks of any sort, and anything that spams black hole/amber nymph, unless you get a quick sanc.  If you don't have the nymphs, antimatter or pandemonium are good substitutes, and what I used to use.