This is just a nice rounded little card that does a lot of work at all stages of the game
Reckless Imp Reckless Imp is fantastic for more reasons than one
You are never forced to activate mana abilities to pay costs, so if there is a mandatory additional mana cost (such as from Thalia, Guardian of Thraben), you can decline to activate mana abilities to pay for it and hence fail to cast the suspended card, leaving it in exile
I do think Commander is better when more strategies are viable and powerful, so Eldrazi getting a lot of love is a win in my book
He returned to Theros before his spark left him
If you really want to push that damage, the tried and true Xenagos, God of Revels makes your forces tower over any opposition and Duskshell Crawler and Kodama of the West Tree helps you run over them