I find myself with dimension hole energy always full because I don't know who to 2a next. I may not use them currently but who would I use in the future? I recently did Linda, and I already did 3 Icarus, Kro, and Raoq. I did Gina before I realized that Rica, whom I have, already does what Gina is meant for.
The answer I'm looking for are which 2a monsters are utilized the most throughout the game and are worth building for different content such as Labyrinth.