Royal Paladin
Royal Paladins are a clan that revolve around calling other units to rear and filling the field. The more Royal paladins you have the better.
Kagero
Kageros are a clan that revolve around retiring your opponents rear with skills. The more units that are retired with skills, the more of a boost(s) that your Kagero units get.
Granblue
Granblues are a clan that revolve around the drop zone. Granblue units can use their skills to be called from the drop zone to rear or can even be used to ride. Manipulating your graveyard is the key to playing Granblue
Dark Irregular
Dark Irregulars rely on using the soul and have skills that soulcharge or soulblast. Some Dark Irregulars get a boost if you have a certain amount of cards in soul or more, so use soulblast skills wisely and also soulcharge only when necessary or else that will leave you with less cards to use in the game.
Shadow Paladin
Shadow Paladins revolve around sacrificing other units in order to make others stronger. The key to playing Shadow Paladins is to sacrifice units conservatively as you will have less units to attack, boost, and guard.
Pale Moon
Pale Moons revolve around the soul and calling out card from the soul to the rear. The way you play Pale Moons all depends on the type of deck your building so think of combos that will be effective in your deck.
Spike Brothers
Spike Brothers have skills that revolve around the deck. These skills usually call a unit(s) from the deck or a unit receives a boost and is put into the deck at the end of the turn, then the deck is shuffled. Recognizing when to use the skills of these units the key in playing Spike Brothers.
Nova Grappler
Nova Grapplers are units that focus around their rear guards and their high attack power. The key to playing Nova Grapplers is to overwhelm your opponent with strong rear guards.