# Tempest Shield [[Tempest Shield]] is a spell that applies a buff that empowers your shield, granting increased block chance and dealing lightning damage to the attacker, chaining to nearby enemies, whenever you block. The skill expires after a duration but is refreshed after a successful block. ## Skill Functions and Interactions - **Damage on Blocking**: This spell will damage the attacker whenever you successfully block any direct attack or spell (assuming you have passives or an item with <span class="text-mod">x% of Block Chance applied to Spells</span> to allow blocking of spells). - **Chaining**: The damage on block chains from the attacker to the nearest enemy in a range. The number of times the lightning damage chains can be increased by supporting Tempest Shield with [[Chain Support]], by equipping [[Mjölner]] or equipping a helmet with an <span class="text-mod">Tempest Shield chains an additional x times</span> enchantment. - [[Necromantic Aegis]] does not cause Tempest Shield to be applied to Minions. The block chance will be lost and Tempest Shield can no longer deal damage because you are not using a shield. - **On hit effects**: Tempest Shield can be supported with skills that provide bonuses on hit, such as [[Hextouch Support]], [[Power Charge On Critical Support]], [[Blind Support]] and leech. These bonuses will be given whenever the player successfully blocks. - **Weapon swapping**: Switching weapon sets will not deactivate Tempest Shield, if that weapon set includes a shield.