If Strive deserves to exist as a mechanic at all, then this card should use option 3. But I know several people who aren't convinced of that and would prefer option 2. In practice, if a set needed this design and wouldn't be using Strive or Multikicker otherwise, you'd probably see it done as option 1.
Strive was a cute trick to get Heroic to work, but it's not needed otherwise. I like the first wording in most cases, too.