Relay skill is not working in LADDER

Hi...
I have a whalorn which it has the move "Relay". And when it doesn't have any attack moves left, it didn't use relay. But instead, it just switch to my other monsters.

This is quite retarded, and stupid.

Well, the AI is very stupid (as usual). Probably only uses damage dealing moves. Once it runs out, it switches.

any supplementary skills will be used after your monsters run out of attacking skills that mean if you still have other monsters that have attacking skills it will switch.