Energy Osmosis + Zero Monsters

http://yugiohccg.wikia.com/wiki/Energy_Osmosis

Since Zero Monsters have no ATK/DEF, would it cost 0 LP to Special Summon them with Energy Osmosis' effect?

hmm when the target monster leave the field in any ways, it become clean again anywhere else. Osmosis need its own targeting effect or When the moment the targeted monster leave the field and sends to the Graveyard trigger Osmosis's effect to revive it. 

Next note: Tbh I'm not entirely sure it can reduce ATK that already 0 though, but if it does then you'd pay nothing for its revival.

Reduce by 0, gain 0. In GY, pay 0: SS the monster.

Seems pretty good in Zero.

I don't think it works... I'm taking the rulings from Ojamagic, which doesn't have an "effect" that happens at activation per se, so you can't activate it directly. I think the same goes with Energy Osmosis.

regardless, all the good zero monsters actually have atk stats ('cept for star breaker)