Encounter equation:
Total Enemy Cr
----------------------------
Average Party level
x
# of Enemies
----------------------------
# of Players
DI < 0.5: Easy encounter. The party is likely to overcome this with little difficulty.
DI ≈ 0.5 - 1.0: Medium encounter. The party will face a fair challenge but should succeed without too much trouble.
DI ≈ 1.0 - 2.0: Hard encounter. The party will be seriously tested and may need to use significant resources.
DI > 2.0: Deadly encounter. The party is at significant risk and may suffer casualties.
Threat level to encounters from performance
Black Market ranking
Low grade (Common-Uncommon)
Medium grade (Uncommon-Rare)
High grade (Rare)
Special grade (Very Rare)
Supreme grade (Legendary)
God grade (Mythical)