Fifth Dawn is a set expansion for the collectible card game Magic: The Gathering, released in June 2004. It is the third set in the Mirrodin block and features a total of 165 cards. The expansion introduces new mechanics and themes, focusing on artifacts and the interaction between colors of mana. The storyline of Fifth Dawn continues the conflict on the plane of Mirrodin, where the struggle between the Mirran and Phyrexian factions intensifies. This set also includes the introduction of the sunburst mechanic, which rewards players for using multiple colors of mana in their spells.