On android device.
I found some weird interaction with mockingbird.
In the screenshot I have 4 Aven Interrupter(1 Isa a mockingbird as a copy) in play but the exiled spells in my opponent hand cost 6 and not 8 as I should be.
I also have problem with multiple copy of mockingbird and the Cygnet. The intensity of the copy doesn't trigger well.