Upgrade

1.Add 4 kinds of animals containing 2 jewel animals variants spawning in this main world. 

2.Add monsters: Demon, Piranha, Snow Flinx, Fire imp, many ske.

3.Add summoner's weapons: Imp staff, Snow Flinx staff, Sculk Wisp, and 7 summon sword including Terraprisma with cool light when installing sodium dynamic light.

4.Add Chester who can open chest in distance.

5.Add several NPCs who spawn in different biome and sell some weapons above.

6.Add most loot tables and entities's spawners.

7.Add slime spawn without light config. 

8.Add boss Wall Of Flesh, though it is only for creative mode. (Thanks to @SuSen36)

Adjust

1.Riden Bee fly ticks Adjusted upwards to 10s. 

2.Flying mobs wander more reasonably.

3.Adjusted weapons' damage.

4.Changed data pack folder path.