Rare Monsters in Diablo Immortal are Mini-Bosses that you can encounter before facing off with a main Boss. These Monsters have high health and damage as well, but not as high as Main Bosses. After defeating monsters, you'll be able to get different kinds of rewards depending on the type of monsters that you beat. The more monsters you defeated, the higher level of Bestiary. Which gives you bonuses to Life and Damage.
Bestiary
Bestiary is a system in Diablo Immortal that allows you to collect knowledge about monsters as you kill them. When you kill any monster, there's a chance they drop Monster Essence. Bringing 10 Monster Essences to the Horadric Altar will unlock a random entry in your Bestiary. This can be done 3 times a day for the full reward.
As you unlock more entries, your Bestiary levels up giving permanent bonuses to your attributes.
| Level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Bonuses | Life +100 Damage +10 |
Life +150 Damage +15 |
Life +200 Damage +20 |
Life +250 Damage +25 |
Life +300 Damage +30 |
Life +350 Damage +35 |
Life +400 Damage +40 |
Life +450 Damage +45 |
Life +500 Damage +50 |
Life +550 Damage +55 |
Life +600 Damage +60 |
Life +650 Damage +65 |
Life +700 Damage +70 |
Life +750 Damage +75 |
Life +800 Damage +80 |
What are Rare Monsters in Diablo Immortal?
Rare Monsters are similar to the Bosses within Diablo Immortal. They also feature high amounts of health and damage but not as high as the main Bosses in Diablo Immortal. Thhey are usually encountered right before you take on the main Boss fight.
All Rare Monsters in Diablo Immortal
