Cards like Diabolic Tutor are absolutely fine
While none of these effects are likely to entirely turn the tide in any of your games, Battle Menu is such a reliable, versatile card thats also impressively low-cost
This is, of course, another ability that works incredibly well with owyn, since she wants Humans entering the battlefield every single turn and she loves it when there are six or more of them
The creature count is light since Kuja generates tokens on its own, with noncreature spells being very important, hence the high amount of them
If you do control your commander, then you get to put a +1/+1 counter on each Creature you control at the beginning of your combat step
We could discuss red's lack of Game Changers or its best Tarkir: Dragonstorm ( TDM ) cards