Really?... Staff of Dominance?... It's okay.... but nothing I'd warrant putting in a list.
I believe I was the one who suggested Staff of Domination, so perhaps I should try to justify it. I find it to be a very
You know how some creatures can tap for five or more mana? Staff of Domination untaps a creature and itself for four, so that's infinite mana right there. And since you already have Staff of Domination, that easily means tapping all of your opponent's creatures, untapping all of your creatures, infinite life, and drawing as many cards as you want. So basically you win. This seems to be the main reason that Metalworker is banned in Legacy. And in Vintage, where Metalworker is allowed, Staff of Domination shows up alongside it. While it's not the strongest Workshop strategy in Vintage it can and has won tournaments and will likely do so in the future.
In Legacy, they use Priest of Titania instead and it's very good. Even cut off from such creatures, Staff of Domination is a pretty good utility card (and I'm a big fan of combos with components that are good outside the combo). I've seen Staff of Domination used in Legacy decklists where it's not being used to go infinite at all and its utility function (it does have four abilities, not counting the one that lets it untap itself) is what's actually desired. The thing that might turn people off to Staff of Domination is that the abilities ramp up in mana cost and become rather expensive, but it's really the first three you'll be using most of the time and in the right deck, you'll have plenty of mana anyway. It's been used successfully alongside Cabal Coffers Helldozer to wreck the opponent's mana supply.
So in summation, it easily allows for two-card infinite combos and is a solid card even when not used for infinitity purposes.
Lemme look at my binder....
Heartstone? (come on, you know you love slivers)
Sword of Fire and Ice?
Cursed Scroll (a bit more than obvious, though)
I think those are all good suggestions, although yeah, Cursed Scroll is probably on the obvious side. But that depends on the players, as maybe players who started later wouldn't remember how good Cursed Scroll was.
Anyway, what do people think of Oblivion Stone. I've played against it a little and it seems to work. The mana cost (especially if you want to protect a lot of your stuff) makes me wary, but you'd be using it in a control deck anyway.
I do think Heartstone is a bit on the weak side and maybe wouldn't make a cut. But it is a cool card and I used to use it with Sliver Queen way too much...