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Reinhold, in battle, usually allows the opponent to take the initiative, adapting to the latter's tactics (the exception is when he has a pre-planned strategy or is fighting someone whose behavior is monotonous and familiar to Trast). He tries to act as efficiently as possible, using defensive spells while under fire, and using enhancement spells when near weak opponents, whom he can defeat with a single enhanced attack. He often uses the terrain and the range advantage provided by his halberd. That's probably how it is.