Creature Looting Rights

Summary

Guild Alliances are not factored in looting rights for creatures
Boss-level creatures (except Shrine Bosses) will have Blue corpses if a player does not have rights to loot them
- The corpse will appear as Red if the player DOES have looting rights

Players have looting rights to creatures if any the following occurs:

Player is the top damaging player towards the creature
If the creature has less then 100,000 hp, the first player (within the creature's 2 minute damage history) to attack the creature gets a bonus as if they dealt an additional +15% damage towards the creature.
A player is in the same Guild as the top damaging player
A player is in the same Party as the top damaging player

Player is the top damaging player towards the creature
A player is in the same Guild as the top damaging player
A player is in the same Party as the top damaging player
A player's total damage percent dealt (i.e. their damage dealt divided by damage dealt by all players) meets the "Player Damage Percent Threshold" of the boss type
A player is in the same Guild or same Party of a player whose damage percent dealt meets the looting "Player Damage Percent Threshold" of the boss type
A player is in a Guild whose total combined damage percent dealt from all players in the guild to the creature meets the "Guild Damage Percent Threshold" of the boss type