at minimum, youre guaranteed three extra cards per turn one for each opponents draw step
In a format where you start with 40 life, Treasonous Ogre can turn 4 mana into 12-13 red mana, which is more than enough to combo off against an unprepared table with Underworld Breach, Kiki-Jiki, Mirror Breaker, or Godo, Bandit Warlord
(Until there are enough options for a high-density of solid sacrifice outlets in Temur colors, I wouldnt go all in on that plan, but the one-off is a nice option that synergizes with the rest of the deck.) There are a lot of creatures with great abilities for +1/+1 counters, and we also just want back-up options in case casting our commander becomes difficult
Just Dragon Broodmother will get you this for free, though few other cards work as well as that does
And what ended up happening is, they made a set that felt a lot like Rebel Without a Cause , like cars and 1950s American culture, and then they put Indian wallpaper on top of it
Etali, Primal Conquerors ability being an ETB means youre guaranteed at least one card from each player that you can play for free, and its stipulations mean you wont hit any duds