When each battle phase starts, if at least 1 Dark or Light Side unit has 1 or more corruption and/or redemption counters on it, choose one: Each unit with 1 or more corruption counters on it gets +1 power and each unit with 1 or more redemption counters on it gets -1 power until end of turn. Or: Each unit with 1 or more redemption counters on it gets +1 power and each unit with 1 or more corruption counters on it gets -1 power until end of turn.