Two examples are pictured above: Call the Spirit Dragons and Dracogenesis are two enchantments that are all about Dragons
Not terribly strong as you bat commander but excellent in your 99, you really only need to empty one opponent's hand (find the aggressive player) and you'll be ready to return the Temple of the Dead flip land to the card drawing, token generating, life draining bat, and rule the table
Things You Should Know The legend rule means that you cannot have more than one copy of a given legend under your control at a given time
Storm is a bit of a tricky mechanic to work with, so make sure you practice plenty to make sure you get it right
7 Mirri, Weatherlight Duelist You Decide How Combat Is Going Mirri, Weatherlight Duelist makes it so that each opponent can only block with one creature when she attacks or only attack you with one creature when she's tapped, making it difficult for your opponent to prevent and deal damage