Phoenix

Tactical Hints: Extremely powerful units due to high initiative and flame burst. Flame burst alone can wreak havoc on certain units.

Bursting is only triggered against certain units! Phoenix-on-the-ground (Call Hurricane) bursts a lot - but can also damage it self doing so!

exploiting fireburst

The only reason that phoenix doesnt kill itself with fireburst "fireburst but phoenix endures" is because it has 100% resistance to fire. Now if you use Oil Flasks that causes Phoenixes to damage themselves while attacking their opponents.