Day of the Dragons [Commander 2015] Arcane "Serra isn't dead

"Serra isn't dead

if you control your commander

Set: Dragons of Tarkir Promos Type: Creature — Dragon Rarity: Rare Cost: {2}{R}{R} Flying

Set: Commander 2014 Type: Creature — Human Wizard Rarity: Rare Cost: {1}{R}{R} Flash

As long as Conqueror's Flail is attached to a creature

Day of the Dragons [Commander 2015] Arcane "Serra isn't deadSet: Commander 2015 Type: Enchantment Rarity: Rare Cost: {4}{U}{U}{U} When Day of the Dragons enters the battlefield, exile all creatures you control. Then create that many 5 5 red Dragon creature tokens with flying. When Day of the Dragons leaves the battlefield, sacrifice all Dragons you control. Then return the exiled cards to the battlefield under your control.