Suppression Field is a skill located in the Dark Magic (which can be found in the Sorcerer skill tree). Suppression Field is an ultimate. Suppression Field is a morph of Negate Magic
Suppression Field deals the following types of damage: Magic Damage. Which means that it gets buffed by the following blue champion point trees: Elemental Expert, Elf Born, Spell Erosion, Thaumaturge. Also the following red champion point trees protect against this skill: Elemental Defender, Thick Skinned.