Rain of Blows
Deals damage to the target every second for several seconds. While troops are stationed, this also increases troop Defense for a short duration.

Standard Infantry hero combining a sustained rage damage-over-time skill with strong shield and counter-attack scaling.
Riven is a Standard Infantry hero built around a ticking rage skill that deals repeated damage over several seconds, paired with a defensive kit centered on shields and counter-attacks. Her passives boost her troops' HP and Defense - especially inside allied territory - and reward her with self-shields whenever she lands counter-attacks.
Her awakening adds an entirely new mechanic rather than upgrading an existing skill: a chance to shield herself whenever she takes skill damage, making her considerably harder to burst down once fully awakened.
Deals damage to the target every second for several seconds. While troops are stationed, this also increases troop Defense for a short duration.
Increases Infantry Troop HP. While the troop is in allied territory, also increases Infantry Troop Defense.
Increases Infantry Troop Attack. Counter-attacks have a chance to grant Riven a shield for a short duration, limited to once every few seconds.
Adds a bonus to any shield received. While a shield is active, increases counter damage dealt.
New mechanic. Whenever Riven takes skill damage, there is a 50% chance she grants herself a shield for 3 seconds. This effect can only trigger once every 6 seconds.
Great Ambition
Great Ambition adds a new mechanic rather than upgrading an existing skill. Whenever Riven takes skill damage, there is a 50% chance she grants herself a shield for 3 seconds. This effect can only trigger once every 6 seconds.

Riven had a passion for sports from an early age and was rebellious, often getting into fights. When her parents enrolled her in boxing lessons, it ignited her fascination with combat and led her to explore various martial arts. Then disaster struck: at eighteen, she fell off a cliff in a devastating accident. Injured on the cold ground, it seemed misfortune had struck again when a brown bear appeared - but perhaps the bear thought she was already dead, since it did nothing and instead stayed by her side. Thanks to the bear's unusual behavior, the search team found her faster than expected. After her recovery, Riven committed to a rigorous rehabilitation, determined to regain her former physical strength, and even became friends with the bear. When the Zombie apocalypse broke out, she proved to be one of the most resilient people, overcoming every hardship with tenacity and strength, even encouraging and motivating others.