D&D 5E (2024) How Many Offensive Spells Do You Ned to Know?

[Zardnaar]

Vicious Mockery and Tasha's Hideous Laughter should be more than offensive enough, until you get Irresistable Dance.

Most illusion spells can be incredibly offensive as well, if you're creative.

Cantrips were free i would add an AoE control spell.