Ancient Ziggurats for sure i didnt even know that was a card no charge counters and no bad effects towards you for the mana you want!
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elvish piper could help you get stuff out for cheaper!!! And cast other stuff also in the same turn!! I see what your trying to do, build quick. Heres our some other cards when your late game"it that betrays" is really good have them sacrifice there colored pernaments and you get them having you build even faster!
I don't know if your up to it but get rid of the Metallic Sliver and add 4 Harmonic Slivers because there just amazingly great even more if your not using artifacts or enchantments! And its every time a sliver comes into play! Also use some of the lands with charge counters because with only 4 gem-hides it could take a while to a few turns before you get the help for lands/mana the charge counters are great!
Don't know how you feel bout a pinch of green but there is fastbond+Grazing Gladehart+/2 (or more)simic growth chamber. you will keep losing one life but gaining two by putting one down and putting another down and repeating untill your alll set.