This spell is a part of The Magistry's Sacred Magic. Sacred Magics have their own specific rules compared to normal spells.

It is important to read The Magistry's Sacred Magic main page.

This spell grants the aid of Dice themself. Choose a creature within range. That creature's hit point maximum and current hit point is increased by 1d4 for the duration. When the creature uses the Help action on a friendly creature, it can grant 10 temporary hit points to that creature.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the dice used for this spell change to 1d6 at 4th level, 1d8 at 5th level, 1d10 at 6th level, 1d12 at 7th level, 1d20 at 8th level, and 1d100 at 9th level.