Smoldergeist

The Smoldergeist is the first offical boss faught in Mario & Luigi: Dream Team. They are faught in a group of four under Pi'illo Castle. They are first seen where they put Mario and Luigi through different trails in order to pass. However, they then start to surround Princess Peach and Toadsworth urging Mario and Luigi to fight them.

Appearance
The Smoldergeist are mainly rock-like enemies that are surrounded by fire. They also greatly resemble Embers from the Paper Mario series.

Battle
In battle, the Smoldergeists mainly attack by spitting fire at Mario and Luigi. When their flames are put out (such as from the beginning after Starlow puts them out), they will simply roll into either Mario or Luigi.

Tips
The Smoldergeists aren't hard bosses as their attacks are simple to avoid. Mario and Luigi should only attack the ones without their flames on. Since they don't have Bros. Attacks or hammers at the time, Mario and Luigi must rely on jumping to defeat them.

Trivia

 * This is the only boss fight where Starlow assists Mario and Luigi directly in battle.