Burden of the End

The gods have seen a great cataclysm on the horizon and tasked their martyr with protecting the world from catastrophe. The exact nature of the coming End may vary: sometimes the awakening or arrival of an evil entity, sometimes the discovery and abuse of a powerful artifact, and sometimes a singularly destructive event that endangers the gods themselves, but the martyr must be dedicated to give their lives to stop it. To this end, the gods imbue their martyr with ancient and powerful spells, tools once gifted only to prophets.

When the coming cataclysm threatens the world, a martyr would be ill-served to ignore their call, for the cataclysm imperils them directly—as well as the lives of their family and companions. The life of a martyr is always forfeit, but the rest of the world can yet be saved.

Level 1: Burden Spells

Level 1: Cantrips

Your divine mission grants you a sliver of divine magic. You learn the sacred flame and thaumaturgy cantrips, and one other cantrip of your choice from the cleric spell list. You do not lose hit points for casting these spells. Wisdom is your spellcasting ability for these spells.

Level 1: herald of the End

Your magic is empowered with foreknowledge of the end times, heightening its force. When you cast a martyr spell that deals damage, you can choose to reroll all of its damage dice and must keep the new rolls. Once you use this ability, you can’t use it again until you finish a short or long rest.

Level 6: Sacrosanct Spell

When you cast a spell with a casting time of 1 minute or longer, or a spell that has the sole effect of restoring hit points, you lose no hit points from casting the spell if you cast it at its lowest level. Casting the spell still counts against your total number of spell uses.

Level 14: Embrace the Inevitable

Once on each of your turns, when you cast a martyr spell of 1st level or higher which calls for a saving throw to resist its effects, you can spend additional hit points equal to half the cost of the spell to cause the creature to roll its first save against the spell with disadvantage.

Level 18: Halt Apocalypse

The gods have blessed you with precious time enough to forestall catastrophe. At the end of your turn, you can choose to take another turn immediately. Once you use this ability, you can’t use it again until you finish a long rest.