OptiMAL
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You won't get much stronger... We'll be evenly matched. But I have a castle nearby, so I can replenish my army, while you, if you spend time leveling up on your way to me, will arrive already weakened.
If you choose a sedentary lifestyle, meaning staying in your castle, you won't be able to level up your hero. You'll also need to level up, conquer new lands, and I can simply meet you and force a battle.
:D