Modifiers

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

Modifier	Effect	Introduced	Arena Modes
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
Epic	Heavily shielded and highly aggressive enemies appear in great numbers.	Original
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
Solar Burn	Solar damage from any source is increased by 300%.	Original
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.