When playing the hero tentacular, his hero power states when space is available summon a tentacle thing with taunt. However, should you get the reward when you summon the golden fish it doesn’t work correctly. The fish should summon because it says start of combat, but instead tour taunted tentacle thing appears and blocks the fish. This puts the player needing to play only 5 minions when it is clear from the text that the hero power taunt tentacle thing should only appear when space is available and not supersede the fish start of combat text.
That’s where you should have stopped.
You may have a start of combat effect on a minion, but the hero power is prevalent on that since it’s also kind of a start of combat effect since it’s active at all time during the combat, including at the start.
If you want this change I think you’d be better asking for a design change in other forums, but I doubt this would be acknowledged as a bug.