As in the title. The rule goes: "Whatever the type of roll, players cannot roll more than three dice of the same color at once." Does that mean the 3 dice limit applies to both players? So if for example Mushashi is using Ken No Sen against Gata, she cannot add 2 more Blue dice with Block or double Dodge? Or does that mean "per player", so she can play Block but not a Dodge as well? It would create a bit of a pickle if say both players wanted to play the same tactic in the same roll and suddenly run out of a dice colour. Whose tactic would take precedence then? There's nothing about a "stack" or "resolution order" in the rules.
Welcome to the forum! It's per-player, so each player can roll up to three dice of a colour. So potentially both players could be rolling three each.
Although less dramatic, you could roll one players dice then record the results then give the dice to the opponent. The active player then determines the order of declaring switches. Maximus could use a block and a special to taunt the opposing character rather than using every block against a success and so on.