One of the spirits flies towards a tower in 500 range and buffs it for 5 seconds. The buff has a different effect depending on the tower's element: +42% experience for Astral +24% spell damage for Darkness +6% crit chance for Nature +24% damage for Fire +30% buff duration for Ice +12% attack speed for Storm +9% item chance for Iron The buffed tower has a 25% chance to receive another random effect in addition to the first one.