Dragon Challenge 1:
Sky Monarch
"The Titan leader has approached you with an offer you cannot refuse: Use the help of your Draconic allies to guard his domain and lightning itself will enchant your riches."
Requirements: Titan as Base Faction, Dragon as Prestige Faction, Reincarnations 48+, Dragon's Roar upgrade purchased, Titan, Druid, Faceless, Dwarven and Drow Challenge 1 completed.
Challenge: Have 7200 Halls of Legends.
Effect: Mutiplicatively increase faction coin chance by 12% per Lightning Strike tier bought.
Effect: Also increase Post-Ascension bonuses for Titan Drill by 100x and Titan Sized Walls 10x.
Upgrade: Works with Titan+Dragon
Dragon Challenge 2:
Barkscales
"Unstable power flows through your workforce. Prove to the Dragonlords you can sustain and control every sip of it."
Requirements: Druid as Base Faction, Dragon as Prestige Faction, Reincarnation 51+, Dragon Bloodline, Titan, Druid, Faceless, Dwarven and Drow Challenge 2 and Dragon Challenge 1 completed.
Challenge: Generate at least 1e10 mana in this game, Have Grand Balance affect 7 buildings.
Effect: Increase Non-Unique Buildings production based on the amount of Grand Balance targets. Does not suffer from Ascension penalties.
Formula: (20 * x ^ 2), where x is number of targets.
Effect: Also reduces all Spell Tier upgrades costs based on Grand Balance activity time in this R.
Formula: max(0, (1-t/28)^9) t is Grand Balance activity time in days.
Upgrade: Works with Druid+Dragon
Dragon Challenge 3:
Serpent Queller
"Legends tell of a terrible sea monster destroying ships and harbors. With your dragon and faceless allies you can finally form a powerful army to raid its underwater lair. Slaying the leviathan will not only earn your kingdom eternal glory, but will make the overseas emporium flourish once more."
Requirements: Faceless as Base Faction, Dragon as Prestige Faction, Reincarnation 54+, Have 5500 Excavations, Titan, Druid, Faceless, Dwarven and Drow challenge 3 and Dragon challenge 2 completed.
Challenge: Have a combined total of 8 days played as faceless and dragons with a minimum of 2 days as each one.
Effect: Ascension 1 penalty from Deep Memory is removed and its bonus increased.
Effect: Faction Coin find chance from Evolutive Mutation becomes multiplicative with increased effect.
Formula: floor(3 * x ^ 0.65)%, where x is your amount of Sunken Cities.
Upgrade: Works with Faceless+Dragon
Dragon Challenge 4:
Draconstellation
"Centuries ago, the Dragon race managed to stockpile the absolute pinnacle of wealth. Scattered in the stars, help them establish a stronger connection with the void between the realms."
Requirements: Titan, Druid or Faceless as Base Faction, Dragon as Prestige Faction, Reincarnation 57+, 46 Artifacts, Titan, Druid, Faceless, Dwarven and Drow challenge 4 and Dragon challenge 3 completed.
Challenge: Have 9,000 Iron Strongholds and have at least 4 Dragon's Breaths active at the same time.
Effect: Faction coins from excavations are increased based on the amount of artifacts you own.
Formula: (x ^ 6)%, where x is number of artifacts.
Upgrade: Works with Titan+Dragon, Druid+Dragon and Faceless+Dragon
Dragon Challenge 5:
Ancient Incantation
"You have affiliated with many magical races in the past, but none as potent as the dragons, whose very breath is among the strongest of forces. There might be some way for your wizards to exploit this."
Requirements: Titan, Druid or Faceless as Base Faction, Dragon as Prestige Faction, Reincarnation 60+, Dragon Unique Building, Dwarven and Drow challenge 5 and Dragon challenge 4 completed.
Challenge: Have 5 spells active at tier 5.
Effect: Tax Collections are 20% more powerful for every spell tier you have active.
Upgrade: Works with Good+Dwarves, Evil+Drow and Neutral+Dragon
Dragon Challenge 6:
Dracomet Vault
"This backwater world has been conquered. The Dragonlords strive for greater riches. Follow the Dragon King, soar through the heavens and claim the energy of the cosmos."
Requirements: Titan, Druid or Faceless as Base Faction, Dragon as Prestige Faction, Reincarnation 63+, Dragon challenge 5 completed, 12,000 research points spent across all facilities.
Challenge: Gather 2.5e18 faction coins, 1e141 diamond coins, 120,000 buildings, 2e10 mana produced, 7500 excavations, 6000 assistants, 300,000 max mana and 175,000 mana regen.
Effect: Production bonus from Gems is multiplicatively increased over time based on the amount of artifacts you own. Resets on Abdications.
Formula: (0.01 * x * (y / 60) ^ 0.7), where x is artfiact found and y is time this game in seconds.
Upgrade: Works with All
In-Game Challenge Final Reward
Prismatic Breath
Effect: While all 5 breaths are active, Reincarnations count 50% more.