Since Ayula loads up on +1/+1 counters, you can power her up past what your opponents can handle, all while slapping on a few Mirran swords and hexproof auras to make sure your opponents cant interact with her at all
Tymna the Weaver is an obvious candidate for a commander that can benefit from the evasion and the doubled triggered ability
I can almost make a case for this to be occasionally better than Swan Song, but costing more is a trade off when it can hit any sort of spell
Zopandrel, Hunger Dominus For what you get immediately, Zopandrel, Hunger Dominus is definitely a little slow
Battle Angels of Tyr While Battle Angels of Tyr is very conditional in its abilities, myriad makes temporary tokens for each other opponent that its not attacking that turn
Mythic Modal Land So, why did I go on a quick aside about busted mechanics