The thing is, Rev gives you Treasure right away when your creatures connect (once per opponent dealt damage), and granting creatures deathtouch on attacks makes it more likely youll connect
No player gains 4 life
I want you to tell me right now if when building your deck, the ratio of even-Cost cards versus odd-Cost cards is ever something you've considered outside of Gyruda, Doom of Depths or Obosh, the Preypiercer, of which Void Winnower predates both of these cards by 5 years
Lightning Greaves These boots werent made for walking, but they will definitely protect your commander and kick butt later in the game
A tapped creature is very unlikely to be damaged by anything, so this looks very close to a 1-mana Claustrophobia
The first two chapters of this saga are good enough at 3 mana, creating a creature with the possibility of ramping you and letting you pitch two cards for some draw