Bug with Sing-Along Buddy/Artanis multiplying attack

Just played a game against a Druid Player where they had played the Artanis Hero Card and Summoned Two 3/4 Zealots. They then played Sing Along Buddy, and used their hero power to give +1 attack and divine shield to a minion and your hero.

The 3/4 Zealot should have become a 5/4, but instead, Sing Along Buddy doubled it to a 6/4, then triggered again to add another 3 attack to turn it into a 9/4.

I have included a replay of the events as I described. I was on the PC Platform, playing Ranked Standard.

[indent preformatted text by 4 spaces](https://imgur.com/a/1qjjYux)

They simply had played Groovy cat during the game
The buff from groovy cat transfers to Artanis (which was not the case, but was a bug, but has been fixed)
Currently the buff is not indicated on Artanis’ hero power and that will be fixed next actual update

In short that’s the intended interaction, but with a non-intended text

Btw why would you post a recording of a replay instead of the replay itself ?

not a bug. learn to read