Making incentive rewards for doing dungeons a certain way that reward higher ilvl loot then the dungeon normally gives. Please keep in mind these are optional ways to run a dungeon.

random examples:

Amdapor Keep:

1) first boss, kill boss without defeating Golem adds, reward extra loot box with 10 ilvl higher item.
2) demon wall, kill demon wall before Gnats spawn.

Or: Clear a dungeon without opening any chests and within a certain time limit and the last boss drops a chest with higher ilvl item.

Pharos Sirius:

1) first boss, no one dying
2) 2nd boss, Roc doesnt enrage from egg killing
3) Siren, no one getting charmed from the fight.

could be any kind of different strategies to clear a dungeon to reward players