I think that ender pearls should be used to a make device that teleports you to a recall station you've place or maybe takes you to an endermen dungeon. Testificate should give quests that reward you with experience, items (normal/exclusive), and dungeon ports. Run should be an earned skill. Add random events like a meteor impact, earthquake, some flooding from rain, or a solar eclipse that cause nether mobs to spawn. A calender. Ink pen to write on paper when placed, right click on the paper to read it(book for ground and paper for walls). Tables and chandeliers. Holding a torch emits light. Paddles for boats. Bees and beehives.