Depending on how many keys you have, it may be easier to run bat or lilith not both at the same time. You will probably need those 3* yellow shards in the future so you will be running the dungeon alot.

We will have 4 toons that can be awakened once prisoner is released, so you will need 1900 shards for all four, plus any for other toons. The dungeon is relatively cheap on ironite if you have free keys.