Thread:Nihil679/@comment-25701166-20141219162121/@comment-25316201-20141225160531

Yes, Lock You's additional effect is based on LRIG type. For example, Remember Night, Star-Reading Miko will gain the additional effect.

ARTS are not used in a "stack" if that is a TCG term you are used to; you don't queue up a bunch of ARTS you wish to use during the Attack Phase and tell your opponent, "I want to use these ARTS." Rather, ARTS during the Attack Phase work immediately when you declare their use. Then, because it is still during your Attack Phase - ARTS Step, you may use more Attack Phase ARTS.

Thus, when you play Dark Matter, it resolves and you gain enough Ener for another ARTS, you may play another ARTS because it is still within your Attack Phase - ARTS Step. You may then play a second Dark Matter. This second Dark Matter's effect then resolves, and you may play another ARTS if you wish. You repeat as you desire.