Red-Eyes Alternative Black Dragon Red-Eyes Alternative Black Dragon has great synergy with Red-Eyes Black Dragon, and can force your opponent to make this tough decision
Dihada costs 4 mana to cast, and you have 10 creatures for 3 mana or less, so Id goldfish a few opening hands just so you know what a keepable one looks like
The features powerful equipment including Dancing Sword, Loxodon Warhammer, Dueling Rapier, as well as 3 copies of Fighter class to tutor for equipment and make the equip cost cheaper
Invasion of Tarkir's enters-the-battlefield ability triggers and goes on the stack without a target
Add in other damage-dealing spellslinger payoffs and you might close out a game in a single turn
And if you really want to break things, play Ashaya, Soul of the Wild to turn every creature into a land, making them infinitely recastable