Cassus underestimates his mana reserves, and whenever his mana falls below 10%, he regains 20% of his maximum mana over 10 seconds. Cassus could only carry 1 charge of this effect and refreshes when he visits the shop.
Also, when attacking an enemy champion, Cassus temporarily gains 1 armour and magic resist for every 5% of maximum health he has over his opponent, but loses 1 armour and magic resist for every 5% his opponent has over him.
Passive: Cassus periodically absorbs a single basic attack by champions or turrets. Every time he absorbs an attack, he could cast Annihilation Reversal once within the next 5 seconds. Otherwise, he permanently gains 1 armor and restores 10 mana.
Active: Cassus gains 500% movement speed for up to 2 seconds, reactivating the ability to end it early. He may cast Quantum Phasing once during the duration, but he is otherwise silenced and blinded for twice the duration, and takes 50% more damage.
Active: Creates a gravitational singularity at the target location, immediately drawing in all opponents in a 200 radius and stunning them for 0.5 seconds, during which Apocalyptic Vision may be used on one of the affected opponents.
Physical damage: 60 / 80 / 100 / 110 / 120 (+ 10% AP) + 5/10/15/20/25 per target drawn in
Active: Forces the targeted opponent to see a terrible vision of a bleak future, further stunning them for 0.5 seconds then fearing them. The vision empowers his belief, increasing his attack speed by 10%/15%/20%/25%/30% for 3 seconds.
Magical damage: 70 / 75 / 80 / 85 / 90 (+ 20% AP)
Fear: 0.5 / 0.75 / 1 / 1.25 / 1.5
RANGE: 300 ~ 1500
COST: 10% or 80 mana per second, whichever is higher
Active: Cassus transforms into the embodiment of inevitable entropy, becoming untargetable but still takes 50% damage from area of effect abilities. The effect continues indefinitely, slowing all affected targets and Cassus himself, increasing in range for 10 seconds, until Cassus is killed, silenced, or uses Next Genesis.
Active: After continuously casting Endless Entropy for at least 5 seconds, Cassus can trigger a miniature new Big Bang, dealing damage to all targets in a massive range. The damage is reduced by 10% for every 500 units further. Targets within 150 range is blinded for 1 second.
Magic Damage: 80 / 100 / 120 (+ 70% AP)(+ 1% for every 200 remaining mana)