OK, so I have the questions below. I only play here 2 days and I don't know so please help me out :P
1. If I buy the expansion, it consumes Mist Energy like the "Rank" Missions to play it?
2. Is it repeatable or One-Time only? If it is repeatable, how often can I play it?
3. I saw it says you have to pay a fee on the Elevator to enter it, but you can buy an Elevator Pass to enter them. That Elevator Pass lasts forever or it has limited time / limited times of use?
1. Using the elevator to move from level to level will always cost 10 energy unless marked otherwise.
2. You can do the missions as many times as you like, but you will only receive the weapons and prestige for that tier once.
3. An Elevator Pass gives you free elevator rides for 30 days.
4. Next time, use the search bar before making a thread. This is probably close to the 50th thread I've seen asking these questions.