When Day of the Dragons comes into play, remove all creatures you control from the game. Then put that many 5/5 red Dragon creature tokens with flying into play.
When Day of the Dragons leaves play, sacrifice all Dragons you control. Then return the removed cards to play under your control.

• Number: 31
• Rarity: R
• Type: Enchantment
• Mana cost: 4UUU
• Color: Blue
• Artist: Matthew D. Wilson