It's definitely a strange ability, but the gist of it is that connecting with your 3/3s will let you cast powerful spells for free, which will likely make it even easier to use Magar and connect in combat as the game goes on
The power level of the Dominus and Twilight cycles, matched with the speed boost games will get from an increased presence of poison counters, means that this set is going to have a huge impact on Commander
Love it much here and elsewhere too
Theres also my commander itself, Gyome, who doesnt mind rumbling to attack with its inherent trample ability
You can also fetch Cage and the other one-mana hate cards out of the sideboard with Karn, the Great Creator
I had a local casual player ask me if I had any Archenemy schemes, and I was surprised to see that some of the random ones I had that were collecting dust were actually worth a decent amount of money