On {{OfficialNewsArchive|968|April 17, 2009}}, challenge spell is no longer an
✨ Attack Spells|aggressive spell, which means you can use it in a combination with
✨ Attack Spells|aggressive spells.
Before the
✨ Updates/11.40|Summer Update 2017, this spell only made creatures change target to the caster without any other effect, meaning creatures would still be able to switch target immediately. This made it seem like spell had no effect on some creatures due do to their high retarget rates. In addition, it used to be impossible to stop creatures from running in low health, but this update also forced creatures to attack you instead of running away, while under the 6 second effect of the spell.
It used to look like this:
