Is Hex worth it at high levels?

[RedMage125]

I once played in an one-shot where I had the Barbarian and the other player had the Warlock. IIRC we were 3rd level.

Long story short, the Warlock keeping Hex on the boss was key to our victory, but so was the Barbarian keeping the boss grappled and away from the Warlock.

Was great teamwork.

I pulled the same trick when 5e was new. Warlock Hexed the largest opponent on the field, and my dragonborn Valor Bard Grappled him while the rest of the team took out all the mooks. Then we stomped the big guy.