Sylvans

If you have the following: Units that can use this synergy:
 * 3 Units: When hurt, Sylvans have 15% chance to deal 135 DMG to every nearby foe.
 * 4 Units: When hurt, Sylvans have 25% chance to deal 135 DMG to every nearby foe.
 * Druid.
 * Dryad.
 * Treant.
 * Ranger.
 * Green Dragon.
 * Moon Doe.