Devastating Beam Attack

Gone are the days of survivable blasts, dodgeable strikes and wimpy rays. Never again will you have to wonder about the "Hit Points" of a creature. Yes adventurer, you're entering a whole new world, the world of a Devastating Beam Attack!

When you cast this spell, designate a one mile long line that has a five foot diameter. Any creature within that line at the time of casting knows that you're about to unleash a Devastating Beam Attack, much like the effects of the Convey Intention Cantrip. It is probably a great idea for them to get out of the way. A creature with an Intelligence of 4 or less is not affected by this part of the spell.

At the end of your next turn, assuming you've maintained concentration and not moved or taken any actions or reactions since casting this spell, a Devastating Beam projects itself from you and Devastates everything* in the Beam's Attack range.

Any Medium or smaller creature unfortunate enough to have ignored the warning is vaporized as 5,000,000 megatons of TNT worth of Beam collides with their chest, killing them instantly. The same can probably be said for Large or larger creatures which take 40d10+50 fire damage. Any armor hit by the Beam, natural or otherwise has its AC bonus reduced by 10 for one minute. The beam vaporises nonmagical materials and land masses that are weaker than adamantite. If the beam hits a magic item, make a spellcasting check, the DC equals 10 +5 for each rarity level above Common. If you pass the check, the Beam destroys the item. If you fail, the Beam is stopped and does not affect anything behind the item. If the beam hits a legendary creature, it does not pierce them unless it kills them.

We here at the Honeydew Corporation wish you happy Beaming! Remember to Devastate responsibly!

*For all intents and purposes