Change 6391
From Tsunami Wiki
```Originally Posted : Sat Nov 19 15:27:05 2022
Posted by : Burlok
Title : Hydras
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Hydras are now immune to all exhales (not just their own).
When a Hydra exhales in a room that has exhale it will strengthen the
existing exhale rather than making a new instance. The last hydra to
strengthen the cloud becomes its owner for the purposes of determining
aggressor with future hits.
```
