This old thread tells you pretty much everything about Jester, although the 2 extra defenses added after presents were not originally included (and IMHO should never have been added either). Jester thread Not only do presents save DU versus the same defense from the original builder but defenses also get a 30% speed boost except for Apprentice defenses. The Wheel O' Fortuna ability is extremely OP, from healing everything across the whole map to damaging all enemies, 3 Jesters rolling Damage All will clear a map barring any new enemies that spawned. Although Jester can wield any weapon type, the character model is built on the Apprentice so you get more damage from those weapons. One of the main uses of the Jester is as an upgrader due to very high cast rate, with many people making an upgrade Jester by putting points into Hero Cast Rate. If you are the host (to eliminate lag issues) and have another Jester dropping mana for you, you can essentially upgrade as fast as you can click.