Commander easy : Emry, Lurker of the Loch 

She has no commander tax almost since if you have artefact her cost is reduced and she can easilly bring artefact, please read almost all the deck, just by tapping.

You can play her turn 1. Place

And boom she cost only one blue mana which you have with Seat of the Synod

Commander hard : Urza, Lord High Artificer

Good construct to add when he comes on board since we have a lot of artifact and he can cast for free all cards just for a little bit of mana.

Destruction

1. Completely wipe your opponents' boards every turn, while yours remains safe and sound. Since all artifact are indestructible on our side becaue of Darksteel Forge and everything is a Artifact because of Mycosynth Lattice (even lands) you wipe every cards of the enemy board. Just keep 1 mana.

2. Completely wipe your opponents' boards and if you can bring back Oblivion Stone, which should be possible, then with 5 mana it is possible to destroy everything. Same as 1 but more expansive.

3. Get infinite mana then Braingeyser or Blue Sun's Zenith to 1 shot anyone.

4. Get infinite mana then Walking Ballista everyone to death.

Infinite Mana

1. Use 1 blue mana to make Pili-Pala blue with Grand Architect. Tap Pili-Pala with the Grand Architect for 2 colorless mana that will be used to untap Pili-Pala and add one mana of any color. Repeat for infinite mana of any color.

2. With Krark-Clan Ironworks sacrifice the Ornithopter and gain 2 colorless mana. Get Ornithopter back with Emry and untap emry with Mirran Spy.  With Claws of Gix you can also have infinite health really easily after getting all the colorless mana.

3. Start with Krark-Clan Ironworks & Nim Deathmantle on board. Cast Myr Battlesphere to have it and 4 myr token. Sacrifice 2 myr to gain 4 colorless mana, then sacrifice the Myr Battlesphere. Pay the 4 colorless made previously for the Nim Deathmantle so the Myr Battlesphere comes back to the board and create 4 more myr token. Now we have 2 tokens more than before that can either stay for making a lot of myr token or sacrifice them to Krark-Clan Ironworks to make even more colorless mana. Infinite colorless mana and Infinite token. If you have Skullclamp you can draw when wanted also.

4. +1 Mana and 2 card draws per loop

Graveyard

or

• +2 Sacrifice Myr Retriever, return Chromatic Star and Junk Diver to your hand

• -4 Play Chromatic Star and Junk Diver

• +2 Sacrifice Chromatic Star, draw a card

• +2 Sacrifice Junk Diver, return Chromatic Star and Myr Retriever to your hand

• -3 Play Chromatic Star and Myr Retriever

• +2 Sacrifice Chromatic Star, draw a card

5. +4 Mana and 2 card draws per loop

or

Graveyard

or or

• +2 Sacrifice Myr Retriever return Chromatic Star and Junk Diver to your hand

• -2 Play Chromatic Star, and Junk Diver

• +2 Sacrifice Chromatic Star, draw a card

• +2 Sacrifice Junk Diver, return Chromatic Star and Myr Retriever to your hand

• -2 Play Chromatic Star and Myr Retriever

• +2 Sacrifice Chromatic Star, draw a card

For both 3 and 4 no worry for drawing to the infinite and beyond *play jace cough cough* or use Aether Spellbomb or many other artifacts with mana costs 2 and under that don’t have a card draw ability.

Fun things todo

1. Bring back mindslaver when you want and pay the cost to control your enemy

2. Bring back Jester's Cap when you want and pay the cost to remove anything you dont like from the enemy deck

3. Always keep +1/+1 if you can sacrifice it since he will eat anything that is about to die/exiled and get the +1/+1 and if he is about to be killed/exiled you sacrifice it with something and put back all the +1/+1 on someone

Concept of combo help