Thank you much for doing a review @Slyvester12 . after your comments, I've made the following choices...
https://deckstats.net/decks/165665/1950704-uw-artifactOut:
Aetherflux Reservoir (As you said, I don't have the adequate resources for lifegain in this deck. Completely agree.)
Kuldotha Forgemaster (requires 3 artifacts to sac and is slow.)
Prismite (2cmc and only fixes color of mana. can do better with actual mana/landrocks)
Reliquary Tower (Commander synergizes with discarding artifact/enchantments)
Dance of the Manse (4/4's aren't going to win me much, if at all)
Mirrorworks (5cmc AND costs 2 per artifact copied. Only very few artifacts would be useful copied.)
IN:
Wanderer's Twig (gets land, synergises with commander for recurring)
Traveler's Amulet (gets land, synergises with commander for recurring)
Terrarion (provides mana, destroy self, and card draw - synergizes with commander)
Cloud Key (makes all my artifacts 1 cheaper, lowering curve for most of deck)
Colossus of Akros (10/10 indestructible wall that turns into a 20/20 indestructible trampler)
All that Glitters (later game this can make any creature into a 10/10 or larger, and if graveyarded is recurrable with commander)
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Because of the
Colossus of Akros, my overall mana curve went up, but mana providers went up in quantity by 4 (I think the averaging of CMC is betraying that).
I also missed previously from my wincons the large beaters I have. I'd say those are
Colossus of Akros,
Darksteel Colossus, Master of Ethereum (gets huge later game),
Metalwork Colossus,
Myr Battlesphere,
Soul of New Phyrexia,
Steel Hellkite,
Sun Titan,
Traxos Scourge of Kroog,
All that glitters (attached to any creature).
I was considering adding
Storm Herd as a 'I win you will lose'... but they'll only be 1/1 flyers and I have no real strat to lifegain.
I mentioned
Tezzeret The Seeker as a possible wincon, primarily from the 3rd ability. However the first can get me loads more mana, and the second can get me up to 4cmc artifact tutor into play.
Now regarding the cost, I'd like to put no more than, say $150 into this deck. Probably a better way to put that!
Thank you again!