Delayed strike

This is a chrono spell

When you cast this spell, you may also make a physical action, like a punch, a swing, a throw, a shot, an explosion ect. The actual impact from that attack is delayed by a number of seconds of your choosing from 10 and up to 30 seconds. Whatever is standing at the place of impact when the time runs out will take damage from it instantly, without a chance to dodge, parry or block.

You can only delay your own actions, which were not created by spells.