# Stone shaker not doing bonus skull damage vs towers

**URL:** <https://community.gemsofwar.com/t/stone-shaker-not-doing-bonus-skull-damage-vs-towers/36790>\
**Category:** Support\
**Created:** [March 7, 2018, 1:55pm UTC](https://community.gemsofwar.com/t/stone-shaker-not-doing-bonus-skull-damage-vs-towers/36790 "2018-03-07T13:55:04Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![Slypenslyde](https://sea1.discourse-cdn.com/flex019/user_avatar/community.gemsofwar.com/slypenslyde/32/30373_2.png) [@Slypenslyde](https://community.gemsofwar.com/u/Slypenslyde)\
**Post date:** [March 7, 2018, 3:56pm UTC](https://community.gemsofwar.com/t/stone-shaker-not-doing-bonus-skull-damage-vs-towers/36790/6 "2018-03-07T15:56:20Z")

</div>

Here’s my detective guess since you said it worked for some towers but not all of them and you got some extra sigils:

We know that before 3.3, there was an issue where Valravens could replace the raid boss. The devs told us they fixed that, and it’s kind of a funny story.

We know that the fix was the underlying cause of “Valravens don’t appear in Invasions” and/or “Valravens don’t drop sigils in Invasions”, because that’s how we got the story.

We know that the fix involved, “Valravens won’t appear in the 4-tower fight, you will just automatically get the sigils.”

So my guess is the code to generate a Valraven has several disconnected phases. What’s happening is the code is removing the “Boss” aspect of a Tower, but other parts of the code are recognizing “Oh, I can’t replace a tower”. So you are fighting a non-Boss tower and the ability doesn’t apply.

See [A Couple of Invasion Issues](https://community.gemsofwar.com/t/a-couple-of-invasion-issues/36722) for information about the bug, the hasty fix that caused more bugs, and the hasty fix that probably caused this bug.

---

_[View the full topic](https://community.gemsofwar.com/t/stone-shaker-not-doing-bonus-skull-damage-vs-towers/36790)._