For a set with a lot of expectations riding on it after an 18-year buildup, Lorwyn Eclipsed seems to be at least an initial success
This includes the upcoming Tarkir: Dragonstorms and the extremely popular UB set dedicated to Final Fantasy
If you want to play an aggressive, counter-focused commander without going to Selesnya, this is an excellent choice
If either the opponent or the permanent you control becomes an illegal target by the time Iroh's second ability resolves, the ability does nothing and you cannot choose to have the opponent gain control of the permanent
This commander works great with red discover cards from The Lost Caverns of Ixalan and anything that cares about casting spells from exile, like Etali, Primal Storm and Professional Face-Breaker
Once it's on the battlefield, Screeching Scorchbeast doesn't even need to attack to get the most out of its effects, so long as you have other ways to mill