[Trigger] Infernal Explosion

[pikachu123]

i am making a skill and i dunno what the trigger i am gonna use. .

what i need: when the rock of infernal hits the ground. flames will appear btw i am gonna use the nuclear explosion(completed)

 

[-Berz-]

Create a dummy that casts a spell(thunder clap/war stomp/fan of knifes/flame strike, etc)
Or if you don't want any other effect (stunn/slow) just damage the area.