Tulkas

In Quenya, the name Tulkas means "Strong" and "Steadfast", from the root tuluk. His Valarin name is Tulukhastāz, which means "the golden-haired". In appearance, Tulkas was described to have ruddy flesh and golden hair and beard.

Tulkas was known for laughing in sport and in battle. He was possibly the only being on Arda with the courage to laugh in the face of Melkor, the most powerful being in Valinor (at the time) - and did so once while engaged in battle with him. Despite not being one of the Aratar, Morgoth feared Tulkas more than any of the other Valar.

Having heard of his fellow Valar's struggle against Melkor, Tulkas was the last of the Valar to descend upon Arda, thus tipping the scales of battle against Melkor. Melkor fled before him, and the Spring of Arda was begun.

https://lotr.fandom.com/wiki/Tulkas