I think Arin should be like Toji (check body text)

He should have stronger normal Spinjitzu than others (including Lloyd) in exchange for no element powers or elemental energy. Like naturally physically stronger than most. Since the forbidden five is gone I see no reason for him to learn rising dragon (since the whole point of it was to counter shatterspin). And the object Spinjitzu is good. Like to even out the gap between them or have Arin train as twice as hard. Let me know if you have any questions, additions, or disagrees submitted by...