Under the rules for locking a die it says that during phase 2 I can lock a die. Then it says if I am exiting phase 2 with any creatures that have lock symbols in my active pool, I MUST select one of the Creatures showing the lock symbol and place it into the locked area, unlocking any die that is already there.
This makes it sound like if I roll 2 locks and use one of them during phase 2, then the other one replaces it as I exit phase 2.
I don't think this is the intention of the rules (I think they want you to lock only once, while exiting phase 2) but just want to make sure.
The first statement is still true that you can only lock 1 die in phase 2. It probably should have said something akin to - If you haven't locked a die and are exiting Phase 2 then you must choose to do so.