Titan Ally

Target one creature you can see within range. A harmless bolt of lightning strikes that creature, and causes them to transform to the size of a giant.

For 1 hour, that creature becomes Huge if it is Medium or smaller, otherwise the spell does nothing. For that duration, its Strength becomes 25, if it isn't already higher, and it gains Temporary Hit Points equal to its own Maximum Hit Points. In addition, the reach of all its melee attacks increases by 5 feet.

Everything the target creature is carrying and wearing also increases in size for the duration. When rolling damage for weapons enlarged in this manner, they roll three times the normal number of dice; for example, an enlarged longsword would deal 3d8 slashing damage (instead of 1d8), or 3d10 slashing damage (instead of 1d10) when used with two hands.

This spell ends early if the target creature loses all its Temporary Hit Points. When the spell ends, all temporary hit points remaining on the creature disappear and the creature returns to normal size.