The Doom Machine (EDH / Commander)

This is a mid-power Esper artifacts deck designed around assembling fun combinations for various effects. There are a few infinite combos and a few tutors, but in general those are used as last resorts, instead opting for more value plays instead. Sydri is used in some combinations, as well as stall protection, as we can use our artifacts as beaters if we fail to assemble the combinations.

Best combinations:

•Thopter Sword: Thopter Foundry + Sword of the Meek
This combo results in the ability to pay (1) to create a thopter and gain a life as many times as you would like.
•Thopter Turns: Thopter Assembly + Time Sieve
This combo grants infinite turns, with the downside of having to reserve mana to recast the Thopter Assembly every turn, and you cannot make Thopter a through other means or it stops functioning.
•Death Stick: Sydri, Galvanic Genius + Staff of Nin
This combo grants our pinger deathtouch for (WUB), making creature removal easy. Add a Unwinding Clock and some mana rocks for pinger overload.
•Control is Power: Memnarch + Mycosynth Lattice
This combo allows you to repeatedly steal any permanent on the board for (3U), great for disassembling other players combos.
•The Doom Machine: Darksteel Forge + Mycosynth Lattice + Nevinyrrals Disk
The marquee combo, this turns all permanents into artifacts to be destroyed by the disk, except yours of course! A great ending combination when the game has gone long.

As well as many others!