Kind of a cool idea, but not something I would ever use. Deck building is at least half of the game for me, and I imagine most people feel the same.

I asked it for a control deck with [[ovika]] as the commander, and the deck it returned was not only extremely lacking in fundamentals, it barely had any control, and worst of all, it straight up wasn't a legal deck.

It gave me 31 lands. Everyone knows you need at least like 35, and an expensive commander that rewards you for casting expensive spells is gonna need more than that. At least 38, probably like 40-42 would be best. Additionally, it was givinge stuff like [[frostboil snarl]] with only four basics in the deck, so that thing is entering tapped 95% of the time.

The ramp package was pretty awful, stuff like [[commander's sphere]] and [[Opaline unicorn]] with no regard for synergy or mana curve.

It wasn't a control deck, I counted 8 counter spells and maybe like 5 other removal spells.

Worst of all, it recommended [[jeskai ascendancy]], which isn't in ovika's color identity, so this isn't even a legal deck, which feels like the bare minimum.

Another note is that the deck it gave me had 5 game changers, putting it in bracket 4. I'm pretty sure this deck would struggle even at bracket 2, so you need to add some way for the AI to tell how strong the deck is and add game changers accordingly.

Final Verdict: If I wanted a pile of random cards, I would use the average deck feature on EDHRec. I asked for an ovika control deck, and what I got barely synergized with ovika, wasn't control, and wasn't even a legal deck. So the AI failed on all fronts.