Board Thread:Current Episode Discussion/@comment-9890645-20140521013907/@comment-24510653-20140522125407

Your DP will probably be higher if you leave them separate (especially if you don't have a very strong deck), but it will leave you with two glass cannons instead of one tank.

I usually think that it's better to have one strong card with a lot of HP instead of two strong ATK cards with low HP. But I think it depends on how quickly they get defeated. If both would get defeated after one hit from the boss, then keeping them separate is better. If your single strong card lasts longer, then it is probably better.