This ThunderCats t-shirt shows Lion-O posing in a lightning storm with the Sword of Omens. The Sword's power stems from the Eye of Thundera, which is embedded in its hilt. When in danger, Lion-O can summon the other ThunderCats by shooting the symbol of the Eye of Thundera into the sky, by shouting the battle cry, "Thunder, Thunder, Thunder, ThunderCats, HO!!!" Nothing can stop the ThunderCats once they have all joined forces!