Modifiers

Modifiers change the difficulty of a Story Mission, Strike or Arena.

Modifier	Effect	Introduced	Arena Modes
Airborne		HoW
Angry	Minions of the Darkness won’t flinch, even after massive damage.	Original
Arc Burn	Arc damage from any source is increased by 300%.	Original
Brawler	Guardian's melee damage is increased by 300%.	HoW
Catapult	Cooldown of Grenade abilities are greatly decreased.	HoW
Epic	Heavily shielded and highly aggressive enemies appear in great numbers.	Original
Exposure	Guardians' shields are increased but they do not regenerate.	HoW
Grounded		HoW
Heroic	Enemies appear in greater numbers and are more aggressive.	Original
Juggler	No ammo drops for your equipped weapon.	Original
Lightswitch	Minions of the Darkness deal much more melee damage.	Original
Nightfall	If all players in your fireteam die, you will be returned to orbit.	Original
Small Arms	Damage of Primary Weapons is doubled.	HoW
Solar Burn	Solar damage from any source is increased by 300%.	Original
Specialist		HoW
Trickle	Cooldown of your abilities are increased significantly.	HoW
Void Burn	Void damage from any source is increased by 300%.	Original

Please note that in Heroic and Epic Modifiers, the entire encounters are changed. More and more powerful enemies become available. They even have smarter A.I. Nightfall is similar to hardcore mode in other games. As soon as your fireteam wipes, you are kicked out of the mission or strike.