Out:
Disciple of the Vault - Combo with metamorph and sharuum was too slow, plus it was difficult to tutor.
Mindslaver - Too expensive for its effect.
Myr Battlesphere - Too expensive, might include again sometime against creature heavy decks.
Commander's Sphere - Swapped for monolith, since it's better in the reversal/scepter combo.
Whipflare - Two wraths are enough at the moment.
Baleful Strix - Value creature and a good blocker, not really contributing to the overall plan.

In:
Isochron Scepter - Combos with Dramatic Reversal
Dramatic Reversal - Combos with Isochron Scepter
Voltaic Key - Acts as a Sol Ring with Basalt Monolith, can reset the scepter combo if interrupted.
Basalt Monolith - Good with the previously mentioned combo
Scrap Trawler - Looks like a fun card, could get some combo pieces back from the grave. Test-worthy.
Trophy Mage - Fetches the lantern for mana fixing, monolith for the scepter combo, ashnod's for comboing off, ...