After all, that is what Cards Against Humanity is all about
Being able to draw upwards of three cards in a turn at the expense of just three life means you will have plenty of opportunity to draw into some extra removal or combo pieces very quickly
So if you only have one energy, it counts as two
Play Rule #13 states: Abilities which refer to other cards owned outside the game (Wishes, Spawnsire, Research, Ring of Ma'ruf) do not function in Commander without prior agreement on their scope from the playgroup. Therefore, Spike is twice banned in Commander, and even if Unstable were allowed, Spike wouldnt be able to be played
However, by paying the cost listed in the top right of the left pane in the rules text, you're allowed to cast it as an Instant or Sorcery with the name listed on the card instead
You only need one Yawgmoths Will to win the game, so its not like you really want to draw two