Bow of Seasons +1 (Awakened)

Name an element suitable to the season, the
arrows then do that type of damage. Arrows deal
1d6 additional elemental damage of the same type
as the arrow. Summer: Radiant/ Fire, Autumn: Lightning/Force , Winter: Necrotic/Cold, Spring: Acid/Poison.
•ACTION: fire an overloaded arrow from the bow
that explodes on impact. 20' Radius
DC 16 Dexterity saving throw.
6D6 damage, half on successful save.