Basically, for a flashback card to be playable, the front half either has to be close to on-par for its effect, so the flashback aspect of the card is a bonus / afterthought, or the reward for getting the card in the graveyard is good enough that you don't mind building around a card that's not that great in your hand
You can choose almost any Legendary creature to be your Commander
Characters with this can sing songs as if their ink cost was higher
Swapping out for Shared Animosity is Wild Wasteland
While this set is weak and irrelevant in the modern meta of MTG , it did have Blood Moon as a diamond in the rough
Without a legendary creature, a plainswalker or something fun to push the action, the value of the beginner box dimiinishes very quickly, and just like Trivia board games, you will soon learn the patterns and cards, to the point where you can always win with ease