Upgradeable Spawners - Minecraft Spawner Levels Plugin

With upgradeable spawners, you can level your spawners and buy mob types. You can define unlimited levels and configurable upgrades. Spawners are managed in a useful GUI menu. Also, you can limit the amount of spawners and entities.

Website (must be signed in):
• Spigot: https://www.spigotmc.org/resources/upgradeable-spawners-%E2%AD%95-spawner-levels-plugin-%E2%9C%85-entity-stacking-butcher-1-20-support.77717/
• Polymart: https://polymart.org/resource/upgradeable-spawners.601

Features List:
Create unlimited Spawners
Unlimited amount (configurable)
Unlimited levels (configurable)
Spawn every entity (configurable)
Folia Support
Easy configuration, but still many options
Config with in-build explanation
Config option to remove all spawning conditions, such as light levels and grass blocks. This for example allows spawners to spawn in air.
Configure Economy
Vault economy supported
Inbuilt item economy
Configure full GUI
Edit EVERY item
Edit title
Edit lore
Edit material (item)
Edit EVERY title
Many options to customize your experience
Edit EVERY message your players will see
Send messages as a chat message and / or title and / or action-bar
GUI Interface
No player commands needed
Everything is available in a nice GUI
Very easy to understand and use
Upgrade menu
Upgrade different types of abilities for your spawner
Level system
Economy support
Holograms
Useful holograms to display stats and information about each spawner
This can be disabled in the config
Various options to ensure the highest Performance
Our config contains options with which you can let the plugin make detect big collections of entities. It can then limit the spawners in these areas, that it doesn't get too crowded. (optional)
Limit spawners by a max entity amount per configurable period (optional)
Economy
Vault support
Item economy
Experience economy
You can choose what you want.
Multiple database Types
MySQL
SQLite (Requires nothing; Everyone can use it)

Supports Claim/Skyblock Plugins
All claim or skyblock plugins support that spawners can not be placed in claimed areas where the player is not trusted. The listed plugins below just provide special features.
Special Features support (toggle-able):
Allow players in areas where they're trusted to use all farms
Only allow farm creation in area
Currently supported:
Lands
SuperiorSkyblock2
BentoBox
Import spawners from other plugins (/USpawners admin import). Currently supported:
EpicSpawners