ThunderCats S02E07 - Psych Out

Mumm-Ra tells Aluro that the Egora Talisman will give whoever possesses it the power of extreme self-confidence. Aluro finds the talisman and uses it, along with his own powers of hypnotism, to "take away" the Thundercats' self-confidence, leaving them hopeless and confused. Only Snarf remains and it is up to him to defeat Aluro and restore the Thundercats.