In Attack Of The Clones, Anakin slaughters a large group of Tusken Raiders on his own before going on to go toe-to-toe with Count Dooku later in the same film.

Source: https://gamerant.com/star-wars-why-couldnt-anakin-beat-obi-wan-revenge-of-the-sith/

Some fans may be curious as to how Anakin Skywalker received the scar over his eye in between Attack of The Clones As a result, the only true and canonical thing fans know about Anakin's scar is that he got at some point during the Clone Wars.

Source: https://screenrant.com/anakin-skywalker-scar-eye-explained/