I just realised, it meant that the buff would last every turn, not that your buffs would go up every turn (like, your rage would always be +1 to every subsequent attack, not +1 on turn 1, +2 on turn two and so on), sorry
No problem, it's just as valuable to learn that it's confusing. We're constantly looking for ways to improve the game so we'll make sure to make this clearer in our next update. Thanks for clarifying!