Ever considered something to the tune of

Grand Abolisher + Isochron Scepter with Silence

Great suggestions. Now I'm considering what to pull out...What about:-2 Judge's Familiar +2 Grand Abolisher-3 Mana Leak +3 Silence?

-2 Judge's Familiar +2 Grand Abolisher sounds perfect, you have plenty of counter ability in there already.

As to what to exchange for Silence.. i'd say that's a playtesting call. Mana Leak is very powerfull in the early game and still heading well into the mid game, i'd be hesitant to remove it altogether. The inverse is true of Path to Exile, which is most effcetive when mana ramp is out of your opponents focus; maybe - 1 or 2 of them. I'd just say you'll have to see where your deck's most vulnerable.

I run a similar 'for fun' deck here if you're curious

Link Text

i am currently working on a similar deck. you are free to check it out (oh you want a turn too?), but im feeling more like a student, than a master looking at this

I like the idea, I guess you could use Teferi, Mage of Zhalfir to stop any more shenanigans and possibly a Knowledge Pool which locks out any opponents if used with teferi or curse of exhaustion.+1 though

7/10 would make. I miss Blue/White a lot.

Boomerang should be Echoing Truth or Vapor Snag

Path to Exile could also be Journey to Nowhere since the cost will be the same once imprinted on Isochron Scepter but without the land gain advantage.

Boomerang was chosen because it can bounce lands and keeping you opponent at 2 lands is quite a good control source.

Journey to Nowhere is just not viable because only instants can be imprinted