Menagerie Jug not applying battlecry to Velarok

Bug Report
1 
[Bug Link](https://imgur.com/a/MYEDZL3)

I played Menagerie Jug in arena and it gave my mech +2/+2 but not Velarok, despite the fact it has the dragon tag after being transformed.

2

There have been lots of bug reports about Velarok lately.