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: +28% experience for Astral +16% spell damage for Darkness +4% crit chance for Nature +16% damage for Fire +20% buff duration for Ice +8% attack speed for Storm +6% item chance for Iron The buffed tower has a 25% chance to receive another random effect in addition to the first one.