Nissa gives you value right away, she adds to the board, and she represents a late game threat that needs dealing with and she does all this without ever costing anything above the three mana you pay for her
Preeminent Captain $3 There arent a ton of good soldiers in Standard right now, but there are a coupleBrimaz, King of Oreskos is likely the best of them
Surviving Glorious End As I mentioned a moment ago, the key trick to building around Glorious End is having a plan for after you cast it
Drawing random cards from a shuffled deck makes gameplay balanced and less predictable and more exciting, but some cards with special abilities, like scry, can skirt the rules a little
If you really want to make full use of this card, however, then Commander is your best bet