Alchemical Metamagic

You learn to channel magic to augment spells in a variety of ways. When you cast a spell, you can expend one additional spell slot of 1st or 2nd level to alter the spell. The effect depends on the spell slot you expend.

When you cast a spell that has a casting time of 1 action, you can expend an additional 1st-level spell slot to change the casting time to 1 bonus action for this casting.

When you cast a spell that forces a creature to make a saving throw to resist its effects, you can expend an additional 2nd-level spell slot to give one target of the spell disadvantage on its first saving throw made against the spell.