Champs: Deep Elf Masochist x2 Deep Elf Scout x2 (surprisingly he's runable as he's squishy) Demonvein Vympire x2 Flame Skitter x2 (I think the FDA should classify it as a drug...I can't stop using him!) Gob Gloombringer x2 Hook Fiend x2 Imp x2 Imp Vixen x2 Spells: Acrid Smoke x2 (yes, it's still runable) Demolish x1 Fadding Recollection x1 Mandate from Sheoul x1 Masochism x2 Price of Victory x1 Purefire x2 Retribution x2 Other: Orb of Protection x1 In short, Leech Vitality, and Masochism every body else, and Stealth the rest. 2-3 champs are supposed to the job. Problems: ****** powercreep. Seriously, I can't go any further if the guy plays a BG where a single champ automatically reduces DMG received, sends back the rest, increases DMG, then the player plays a spell which makes it deal twice DMG. Likewise, it doesn't work against BG which suddenly have everybody in play have like 2-4 additional (and convenient) abbilities, plus like all the debuff they can get.
If you want to deviate a little from the stealth theme, long knife adept + maso will work wonders. Also sac , detection and shatter .
Without judging your champion selection here are a few basic changes.... -1 gloombringer.....when do you ever have time to summon 2? -1 retri -1 purefire +1 or 2 sac if you didnt +2 sac..... +1 head of osu you also have no damage spells at all... id take out both acrid smokes for echoes....or at least fireblast