this sounds like a ninjutsu deck. with (G/U) colors and draw with the Heretic and other creatures like ninja of the Deep hours. But a deck based on the whole "Assassin" theme doesnt seem efficent
Cover of Darkness + Thopters + Ninjas = pretty sound, IMO. You may want to replace your theme to make a viable deck, as Rogues are pretty FAIL in a format defined by Volcanic Fallout, Firespout, and Damnation (at least until Duress shows up).
No matter how you slice it, Selkie and Heretic are simply not good. You cannot play creatures so far under the curve in a format littered with MUCH better aggro, and combo that goldfishes roughly two times as fast as you currently do. Shadowmage Infiltrator is the only Ophidian replacement I'd ever use in this format.
Mask of Riddles
Oona's Prowler
Cold-Eyed Selkie
Vedalken Heretic
Cloak and Dagger
I haven't look beyond anything else but just to have as a fun deck? Any suggestions?
No matter how you slice it, Selkie and Heretic are simply not good. You cannot play creatures so far under the curve in a format littered with MUCH better aggro, and combo that goldfishes roughly two times as fast as you currently do. Shadowmage Infiltrator is the only Ophidian replacement I'd ever use in this format.