what about Tezzeret the Seeker .. is this a good adition ?

You should definitely have Tezzeret, Agent of Bolas

agent of bolas over the seeker over the Fabricate ?

Agent of bolas is so much better than seeker.

although seeker cost ... it can enter and do up to -4 and find a piece and place in game insta .. bolas go deep throught the game .. im wrong ? i say this because i have 1 bolas, no seeker, and best to think the best investiment to do in moment. what do you think ?

Pili-Pala? with the Grand Architect you can infinite mana of any combo of colors.

but Pili-Pala will die in momment of ETB because we have Heartless Summoning for accel

with idea of put Havengul Lich would be nice cheap creatures wiht 1 resist and a nice effect when die

Myr Retriever/Altar of the Brood? Reshape? Trophy Mage to fetch Ensnaring Bridge/Lightning Greaves? Whir of Invention? Executioner's Capsule? Scepter of Fugue? Whip of Erebos If you decide to focus on a smaller band of creatures with Trophy Mage you could run a murderous midrange aggro with pacing changes in the SB, cutting the awkward transition to Inkwell Leviathan type creatures and instead just running more Cogwork Assembler for the lategame, Etched Champion/Foundry Inspector/ Chief of the Foundry/Master of Etherium/Scarecrone/Scrap Trawler/Trinisphere/Filigree Familiar/Bottle Gnomes etc would all be useful, but especially Master of Etherium and Chief of the Foundry to negate the heartless summoning drawback. With the tutoring a single Pili-Pala to threaten combo becomes functional. A couple of Thoughtcast would go a long way to providing card draw.Latest set has provided a real toolbox for this style, and there are enough search cards to support that.All told, look around there is a lot out there, a lot of options and fun tools kicking around. Its just getting them all to fit together in a way that you both like and makes sense thats tricky.

@Iagotripha thanks for comment but Trophy Mage cant get Lightning Greaves because is 2CMC, apart from that like the cards and ill study this ...

Myr retriver + altar i guess part of the other combo deck, separeted this ..

this day ago will think in opitons and think in a little comobo with Herald of Anguish + Spine

lagotripha

Sorry, too used to Whispersilk Cloak/Champion's Helm. I guess rushing to Metalwork Colossus via Frogmite and Myr Enforcer would probably be interesting. Just plan through yout turns 1-4 well and playtest and the kinks will work out. Semblance Anvil for another few heartless alternatives will help.

lagotripha - Metalwork Colossus cant be ramped via Frogmite and Myr Enforcer because both are creatures (and colossus reduce cost by non-creature artifact) else it be interesting so. In try to no lose the identity of deck, the midrange tax is more interesting.In my testing Thoughtcast although great card, seens slow in first turn to arrange to pieces. by the Semblance Anvil redundance, i try before copies of Etherium Sculptor, but it loses slot for Lightning Greaves because Master Transmuter + Greaves do a lot of work.

but Cogwork Assembler is a interesting card for late, ill try this