If you're always casting your Commander on turn three, then it means you have a much lower need for a ton of three-drops: your Commander always gives you an option
Illustrated by Lorenzo Mastroianni Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Of course, areas where the opponent invests additional buffs will be the most obvious and common routes, but there will be almost as many avenues for two-for-ones as there are games of Magic played
Consider its card type, any effects that modify when you could cast it (such as flash), and any other effects that stop you from casting it (such as from Meddling Mage's ability) to determine if and when you can do this
If you dont need the aggression, Jeskai gives you a backup plan that draws a card whenever your creatures hit a player, keeping the gas flowing while you keep turning sideways
Use this to surprise your opponent by recasting a cheap removal spell or a counter