I see the issue with Thopter Assembly and Time Sieve is probably not efficient enough because you'd have to tutor both of them out. Probably the same for Sword of the Meek and Thopter Foundry

In replacement of Blightsteel Colossus, are you looking for another big man? Potentially Platinum Emperion to lock your life total in?

Maybe in place of Cathartic Reunion, something that also gives good draw, Brainstorm, Night's Whisper, potentially Sign in Blood? Mind's Eye is also good if you have spare mana left over (that you wont need for responses) when others draw, and its an artifact. Reforge the Soul maybe?

And what were you thinking about replacing Hellkite Tyrant with? Another creature? Maybe Balefire Dragon for board control?

Something that could make Time Sieve more valuable is Second Sunrise and/or Faith's Reward. This could seriously combo with Mycosynth Lattice as well. Make everything an artifact, sacrifice as many as possible to take a bunch of extra turns, then bring them all back. You have enough tutors, and draw power, to possibly make that a viable combo.

@Pheardemons

That sounds like it would be fun (and annoying for the opponents), but Time Sieve requires tapping to take place, unless its paired with Clock of Omens to untap it, and only sacrificing your tapped artifacts. Maybe Time Reversal would help with that, but TR is probably too slow for the deck.

@KailDaemon

I deck tested this today against my friend's Atraxa, Praetors' Voice deck, and I may have kept a bad hand, but that thing demolished.

Adding Dross Scorpion to the combo I mentioned above could supplement the tapping part, however that would probably be too many cards for a combo, being that artifacts are broken as it is. Like the deck overall man.

I had plenty of board pressence, and honestly i think that was the problem. I may have to include a Darksteel Forge to help with cards my opponents play from stopping certain combos. Forge plus Padeem just seems powerful protection.

Does anyone know of a non green card that prevents my opponents from making me sacrifice my own permanents?

KailDaemon I don't believe there are any.

Since most sacrifice spells are target player, maybe Orbs of Warding?

If its a creature or an artifact thats causing it (and for board control anyways), Linvala, Keeper of Silence?

Really i need to stop triggered abilities, might have to throw in a Stifle or Trickbind. Idk though...

What kind of triggered abilities? Torpor Orb could be a great one as it is an artifact.

Torpor Orb shuts us down.

My playgroup has a habit of using annihilator alot and thats a problem for me.

I like it, thanks n0bunga!

Yup, i do believe every instant in the deck is a target for the scepter