Well... I think my sphere is either Refess or Lawtia.
I like playing Refess, but my most favorite part of playing is everytime I managed to counter after get bullied by other sphere in the beginning.
So enduring enemy attack and trick, while preparing resources to counter the enemy and somehow in the end I managed to win.
Card: Probably Zangadylan (Enduring the enemy attack while devouring all of my enemy) or Aliria (Help me to endure and survive enemy superior force while preparing to counter) or Judie (Usually the sign that my counter has started).
Zangadylan and Aliria both also the card that help me to stop my losing streak in Crest.
Before getting them, I used to have several loss in a row while I'm still in Crest.
And Judie is my first card that stopped my Solar Kingdom losing streak in Folrart.