When Thunder Pours: Yinlin Banner Rates, Pity, and Rewards Explained

As a Wuthering Waves player who has tracked limited convenes from the very first version, I still find the Yinlin banner, When Thunder Pours, to be one of the most important examples of how Kuro Games structures a Featured Resonator Convene. I have gone back through the event details, the drop rates, the guarantee rules, and the coral rewards to give you a clear, first-person breakdown of exactly how this banner worked and what it meant for pull planning in the early days of the game.

When Thunder Pours ran from 2024/06/06 10:00 to 2024/06/26 11:59 server time. For anyone who missed the original window, this was a limited-time Featured Resonator Convene built around Yinlin, the 5-star Electro Resonator. The event required Radiant Tide to Convene, and like other featured banners, it carried a shared pity system that later banners would continue to use.

Banner Guarantee and 50/50 System

The most important thing I always check before pulling is how pity and the 50/50 work. In When Thunder Pours, the base 5-star Resonator drop rate was 0.8%, while the average drop rate including the guarantee was 1.8%. You were guaranteed to obtain at least one 5-star Resonator every 80 Convenes. This hard pity count was shared among all Featured Resonator Convene event banners, meaning that if you failed to get a 5-star in this banner, your guarantee count carried over to the next featured Resonator banner. Once a 5-star was obtained, the guarantee count reset.

Every time a 5-star Resonator appeared, there was a 50% chance it would be Yinlin, the limited 5-star Resonator of the event. If the 5-star Resonator was not Yinlin, the next 5-star Resonator was guaranteed to be Yinlin. This is the classic 50/50 system that many players, including myself, used to calculate how many pulls to save before committing.

For 4-star items, the base drop rate was 6.0%, while the average drop rate including the guarantee was 12.0%. You were guaranteed at least one 4-star or higher rarity Resonator or weapon every 10 attempts. Among 4-star items, there was a 50% chance of getting one of the featured 4-star Resonators: Taoqi, Aalto, or Yuanwu. If the 4-star item was not featured, the next 4-star item was guaranteed to be a featured Resonator, with equal chances for each of the three.

Featured and Standard Pool Resonators

When I looked at the full pool for When Thunder Pours, the featured 5-star was Yinlin with a rate-up. The other 5-star Resonators available in the pool were Verina, Encore, Calcharo, Lingyang, and Jianxin. This meant that if I lost the 50/50, one of these standard 5-star characters would appear instead of Yinlin, and my next 5-star would be guaranteed to be the limited unit.

The featured 4-star Resonators were Taoqi, Aalto, and Yuanwu. The non-featured 4-star Resonators in the pool included Yangyang, Sanhua, Mortefi, Baizhi, Chixia, and Danjin. I always paid close attention to the 4-star lineup because it could make or break the value of a banner even if the 5-star was the main target.

Weapon Pool Details

Weapons were also part of the banner pool. The available 4-star and 3-star weapons included Dauntless Evernight, Commando of Conviction, Undying Flame, Amity Accord, Jinzhou Keeper, Discord, Overture, Cadenza, Marcato, Variation, Helios Cleaver, Lunar Cutter, Novaburst, Hollow Mirage, Comet Flare, Broadblade of Night, Sword of Night, Pistols of Night, Gauntlets of Night, Rectifier of Night, Broadblade of Voyager, Sword of Voyager, Pistols of Voyager, Gauntlets of Voyager, Rectifier of Voyager, and the Originite Type I through Type V weapons.

Afterglow Coral and Oscillate Coral Rewards

The coral economy was another major factor in my pull decisions. On obtaining a 5-star Resonator for the first time, you would receive 15 Afterglow Corals. If you obtained a 5-star Resonator you already owned for the 2nd through 7th time, you would receive 1 Waveband of that Resonator and 15 Afterglow Corals. From the 8th time onward, you would receive 40 Afterglow Corals instead of another Waveband.

For 4-star Resonators, the first-time acquisition granted 3 Afterglow Corals. From the 2nd through 7th duplicate, you would receive 1 Waveband of that Resonator and 3 Afterglow Corals. Later duplicates would grant additional Afterglow Corals. Obtaining any 4-star weapon gave 3 Afterglow Corals, while obtaining any 3-star weapon gave 15 Oscillate Corals.

There was also a curious line in the official event text stating that if the 5-star Resonator obtained was not Jiyan, you would get an extra 30 Afterglow Corals. I remember noticing this and treating it as a leftover note from the previous Jiyan banner rather than an actual rule for Yinlin's banner. It did not change the core pulling strategy, but it was a good reminder to always read event details carefully.

With Afterglow Corals, you could redeem up to 2 limited stock Wavebands for each 5-star Resonator. With Oscillate Corals, you could redeem various items from the in-game Store, and the redemption limits reset with each version update. For me, saving these corals was essential for long-term account progression.

My Final Take on the Banner

When Thunder Pours remains a useful reference for understanding Wuthering Waves banner mechanics even years later. The combination of a 0.8% base 5-star rate, an 80-pull hard pity, the shared featured pity counter, and the 50/50 system created a predictable pulling environment. The featured 4-star lineup of Taoqi, Aalto, and Yuanwu added extra value for players building different team compositions, while the standard 5-star pool gave losing the 50/50 a familiar, if sometimes disappointing, outcome.

I always recommend that players treat limited banners like this with a clear budget in mind. Knowing exactly when the guarantee resets, how the 50/50 works, and what coral rewards you will earn helps avoid impulsive spending. When Thunder Pours may have ended long ago, but the lessons from its structure are still relevant for anyone studying Wuthering Waves convene events today.