Delayed Blast

Delayed Blast is a sneaky version of the spell Explosion

Spell Description
This spell can be used to trigger a massive explosion from any possible object targeted after a short delay time. A fireball will fly to said object and then stay there until the timer runs out, only to then explode. The explosion is as big as that of a powder keg and no one can survive it when standing directly beside it. It has no battle value and it is more suited to be an assassin's weapon.