When having gut, true soul zealot in play and attacking with either voice of victory or zev, skyship raider, mtg will order the triggers in such a way, that you can't sacrifice a summoned unit.
The game should automatically trigger this the better way or ask for a prompt from the user.
It is also stupid, that full control won't let you order triggers. I needed to google to find out, that you have to set a setting for this.
This cost me two powered cube matches.
Very annoying.