Sorcerer

Sorcerer: Metamagic

From 5th level, you know two metamagic options. You know three option at 10th level and four option at 17th level.

Whenever you finish a long rest, you can replace any metamagic option you know with another metamagic option.

Metamagic

Heightened Spell

When you cast a spell that forces a creature to make a saving throw to resist its effects, you can spend a number of sorcery points equal to the level of the spell to give a number of targets up to the level of the spell disadvantage on all saving throws against the spell.