Complex sentence: The Grand Champion was lured to Outworld and tempted to take revenge: coming home from the Lost Island, he found many of his Shaolin brethren killed in a vicious attack by a Tarkatan horde.
Split into simpler sentences: The Grand Champion was lured to Outworld and tempted to take revenge. Coming home from the Lost Island, he found many of his Shaolin brethren killed in a vicious attack by a Tarkatan horde.