Chastise Rank 1
Chastise (Rank 1) is a Priest spell in the WoW Forever client.
Chastise the target, causing 43 to 49 Holy damage and immobilizing them for up to 2 sec. Only works against Humanoids. This spell causes very low threat.
Learned from
Learned from the quest A Lack of Fear at level 20, not from the Priest trainer. The trainer sells the higher ranks. Speculation: this is Classic's class quest; its reward spell is in the Forever client, but nobody has confirmed the quest in Forever yet.
Data from the WoW Forever client, build 1.60.1.70862, extracted .