Madoku Craft: Mobs is a configurable mob system that can be tinkered with. This is perfect for users that love to customize the game to their needs. This can be done through the MOD's config JSON file.
"A server-side mod designed to enable or disable Keep Inventory on a per-player basis. Perfect for SMPs where you want custom difficulty settings for every survivor."
/keep -playername-
A multi-loader Minecraft mod that adds weathered wells scattered across the world, each hiding a unique totem that grants permanent water-healing abilities.