***King Enma: A great Red Hit Card that can break Shields and Steal the target's ATK Buffs. Sub is pretty great for other Hit cards as well. Not a bad pick. (Though keep in mind he is in one of the Card Packs.)
***Ranmaru (Decisive Battle): A great Red Hit Card that can inflict Blindness and has Fire-imbued attacks. Sub is pretty great for other Hit cards as well. A great pick if lacking Buffers.
***Spica: A powerful Buff Card that can increase the Party's ATK/AGI and Heal their HP. Overshadowed in more recent days, but still really great if lacking good Buff Cards.
***Tofu-kozo: A Blue Heal card with Scaling Healing and can potentially Wipe or Reverse the Party's Debuffs. That said...he's not reliable on his Buff Wiping/Reversing. (Probably the worst pick of this bunch.)
***Ren: A Green Hit card that can ignore Shields and may apply Damage UP. A bit wonky to use though... His Sub is pretty great other Hit Cards.
***Iris: A Green Hit card that can Heal Party members as she attacks! Her Sub is still pretty really good for Attack Cards if you can fulfill the conditions. Also a pretty good pick.