ver.

Toxin Burst

Dark
Nature
Sorcery
Level 2
Range 12 (Ignores LOS)
Charges: 10
Deal 1 poison damage and inflict poison on all units in a 4 tile radius for 20 turns.
Poisoned units take 1 poison damage each turn and cannot heal.

Attributes:

1Damage
4Radius
20Duration

Upgrades:

1 - Herbal Remedy
All allies in the radius are healed instead of damaged and poisoned.
3 - Withertoxin
Toxin Burst also deals 15 dark damage.
3 - Toxin Bomber
Summons a Poison Bomber in the center of the burst that deals 15 poison damage.