Old Nesting Barrows - 4

Cutscenes
Note: Cutscene plays after clearing Old Nesting Barrows - 4.

The birds managed to retrieve the Mighty Sword. They report back to Mighty Eagle about the successful attempt. Mighty Eagle then tells them to give him back the sword by putting the sword inside his nest. Red then cried as he had to say goodbye to the weapon but willingly did what the eagle ordered him to. The sword then disappeared and the flock realized that they have now unlocked the Mighty Eagle's Dojo.

Strategy
If possible, attempt this stage when you are at a higher level and/or bring along the Golden Rage Chili. Only one bird can be picked for this battle. The following classes are effective at taking down the Sword Spirit:
 * Druid (thorny vine effect will ignore the Fortify skill and she has high healing capability)
 * Princess (Matilda will have one of the highest healing capability, allowing her to recover large amount of health lost)
 * Bard (if the Sword Spirit gets stunned, Matilda will be able to do a free strike on him)
 * Priest (as long as she attacks Sword Spirit all the time, she will be able to recover most of her health back)
 * Capt'n (instantly removes the Fortify skill and is able to do a lot of damage on the Sword Spirit, especially if he uses Whip Up!)
 * Tricksters (instantly removes the Fortify skill)
 * Rogues (poison effect ignores Fortify skill)
 * Marksmen (harmful effect of Marksmen ignores Fortify skill)
 * Skulkers (will be able to inflict more damage with an already high base damage)
 * Treasure Hunters (there is a chance to delay the attack of Sword Spirit)

If you are playing as Matilda wearing the Druid class or the Princess class and the Sword Spirit attacked you, try healing yourself to get back some health before attacking Sword Spirit again.

For the other classes, just attack continuously to defeat Sword Spirit.

Trivia

 * This is the first time ever to have bird vs. bird and to exclude pigs in Angry Birds Epic, the second in the  Player Vs. Player Arena.