Because i was pretty bored.
Basically you use Touhoumon 1.8's Type Chart and optionally make BSTs and Movepools for the characters.
As for me...
Mario (SMB): Fire/Dream (Well-rounded BST, Learns moves based on power-ups on the mario games)
Seitekina Taiyo (OC): Fire/Heart (Bulky Focus Attacker, has Prankster as an ablility)
Atsuko Taiyo (OC): Reason/Grass (Bulky Special Attacker, has Overgrow as an ablility)
Iason Inabi (OC): Illusion/Water (Fast-but-fragile Special Attacker, Torrent as an ablilty)
Nina Inabi (OC): Ice/Heart (Defensive, has Cute Charm as an ablility.)
Haruka Amami (iDOLM@STER): Pure Illusion Type (Well-rounded, Techinian as Ablility)