| | | | | |
| Passive | Deadly Cadence | | | | After casting a spell, any subsequent spellcasts will cost 10% less Mana for 5 seconds (effect stacks up to 5 times). |
| Q | Noxious Blast | | 35 / 45 / 55 / 65 / 75 Mana | 3 / 3 / 3 / 3 / 3 | Cassiopeia blasts an area with a delayed high damaging poison, dealing 75/115/155/195/235 (+0.8) magic damage over 3/3/3/3/3 seconds and granting her 15/17.5/20/22.5/25% Movement Speed for 3/3/3/3/3 seconds if she hits a champion. |
| W | Miasma | | 70 / 80 / 90 / 100 / 110 Mana | 9 / 9 / 9 / 9 / 9 | Cassiopeia releases a growing cloud of poison that lasts for 7/7/7/7/7 seconds. Any enemy that passes through it is poisoned for 2/2/2/2/2 seconds, dealing 25/35/45/55/65 (+0.15) magic damage each second and slowing them by 15/20/25/30/35%. Continual exposure renews this poison. |
| E | Twin Fang | 700.0 | 50 / 60 / 70 / 80 / 90 Mana | 5 / 5 / 5 / 5 / 5 | Cassiopeia deals 50/85/120/155/190 (+) magic damage to her target. If the target is poisoned then Twin Fang's cooldown is reduced to 0.5/0.5/0.5/0.5/0.5 seconds. |
| R | Petrifying Gaze | | 100 / 100 / 100 Mana | 130 / 120 / 110 | Cassiopeia deals 200/325/450 (+0.6) magic damage to all enemies in front of her. Enemies facing her are stunned for 2/2/2 seconds while enemies facing away are slowed by 60/60/60%. |