Cast (ebalen). Second aorist active indicative of ballō. No violence by the use of ebalen as is seen in Mat 10:34 (balein eirēnēn, to bring peace).
Was reaped (etheristhē). First aorist passive indicative of therizō. Both prophetic aorists again. Christ puts in the sickle as he wills with his own agents (Mat 9:37.; Mat 13:39, Mat 13:41).