When making an Attack Roll, the Caster roll a d20, then adds any modifiers to see if it can overcoming the Evasion Class of the creature.
Attacks take only . Each time an attack is made, unless the creature has a way to offset hindered attacks. The creature takes Disadvantage Stack for each roll therefore.
Attack Rolls can be classified as: Weapon Melee Attack Roll, Weapon Ranged Attack Roll, Spell Melee Attack Roll, and Spell Ranged Attack Roll.
Attack Roll = d20 (Main Roll) + Essence + Weapon Skill + Magical Enchantments.