Cast Down
Level 6 Concentrate Metamagic Cleric

Prerequisites: harmful font or healing font

The sheer force of your faith can bring a foe crashing down. If the next action you use is to cast harm or heal to damage one creature, the target is knocked prone if it takes any damage from the spell. If the target critically fails its save against the spell, it also takes a –10-foot status penalty to its Speed for 1 minute.