Description: Swarming lacewing butterflies fill either a 6m line in front of you, or in a 3m radius centred on you. The sphere spreads around corners. The swarm remains for the duration, and its area is lightly obscured. The sphere’s area is difficult terrain. When the area appears, each creature in it must make a Constitution saving throw. On a failed save, all creatures caught in the swarm take 4d6 Light damage, or half as much on a successful one. A creature must also make this saving throw when it enters the spell’s area on its turn or ends its turn there. The spell’s damage increases by 2d6 for each additional 10 mana points used to cast this spell. This spell costs 20 mana plus an additional 10 mana for each turn active. Range: 6m/3m Memory slots: 2