Given how cheap the initial cost is and the big impact it has, leveling up this enchantment doesn't need to be a priority, but if you have a few creatures on the battlefield and want to let your hand build back up, you can focus on pumping mana into upgrades
With a 2/2 body, when you draw that second card each turn
Haven of the Spirit Dragon is another staple, helping to cast your dragons and letting you bring back fallen dragons or even an Ugin if the game drags on
Like most cycles, some of these are better in Commander, and some of these are better in certain decks or metas
As you can see, right now the hottest cards in the set are heavily slanted towards EDH
Ghost rare cards are the rarest of the bunch and truly stand out as the whole card is silver and holographic