blow up marcus

The caster can blow up all Marcus-es, including the caster of applicable, within a 30 foot radius by saying the phrase "Blow Up Marcus" and doing a snapping motion with their fingers. This counts as 1d20 damage with no save. The explosion radius scales by the size of the affected by 5 feet per size increase above medium. This only affects people with the name they go as being Marcus or them being known as Marcus by 5 creatures. This only affects physical things such as creatures and objects. This does not extend to existential concepts such as pain or relief or numbers. The name has to be knowingly pronounced Marcus even if there is a speech impediment. 

At Higher Levels. The range of the spell increases by 10 feet per level.