The damage their creatures wing back at your wolves is not combat damage so your wolves won't die in glorious "combat"
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
That flexibility is hard to capture on a single Magic card, though we did try
The serialized One of One Ring card was not the only rare card in the set
After all, that is what Cards Against Humanity is all about
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