Gyox, Brutal Carnivora and the stack
Gyox, Brutal Carnivora's death trigger should be put on the stack LAST (OR, LET US CHOOSE THE ORDER) so that synergies work properly.
As an example, when Draconic Muralists dies with oil counters on it, in paper Magic, I can stack the triggers however I want. THE ONLY WAY anyone would logically stack them is to put Draconic Muralists on the stack first, then Gyox, Brutal Carnivora. This way, when the stack resolves, you'll conjure the duplicates of Draconic Muralists into your deck THEN search for a dragon, a dragon like, say, a copy of Draconic Muralists that was just shuffled into the deck!
So either make Gyox go onto the stack last, or let us choose the order that things are put on the stack. There are EXACTLY ZERO instances where I would want to put them on the stack in the order that Arena automatically puts them.
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[Deleted User] commented
You can disable the autordering of triggers during a game in the settings menu under gameplay. Just uncheck the box.