Yap.Town

となって

become; turn into

→ と
phrase Uncommon #17,157
become; turn into Used after a noun to describe something becoming or taking the form of that noun. It can also express a role or capacity, meaning “as.”
JA: 彼はチームの代表となって会議に出席した。
EN: He attended the meeting as the team's representative.

ついカッとなってしまって。

I just lost my temper.

教育というものは子供同様親にも重荷となってはいけない。

Education should not become a burden for parents any more than it should for children.

「冬の時代」が大学改革の起爆剤となってくれればと思う。

I hope this “winter” can serve as a catalyst for university reform.

兵士となって働きます

I will serve as a soldier.

— マルコムＸ (1992)

光が刺激となって花が咲く。

Light triggers flowers to bloom.