Aatrox, Deathbringer

Actions

The Darkin Blade
melee weapon attack, reach 10ft
+11 to hit 1d20+11 for 7 2d6 slashing 2d6 and 31 3d20 necrotic 3d20 , 38 2d6+3d20 . Aatrox is healed for half of the damage done to the target.   Infernal Chains
1 action, (concentration 1 minute)
Aatrox summons fiery chains around a target, they must make a DC 17 Strength saving throw or they become restrained. At the end of each of the creatures turns the creature takes 1d12 1d12 fire damage and may make the save again, ending the effect on a success. An ally of the restrained creature is able to spend its action to assist the target with the saving throw, allowing them advantage and can drag them at half speed. Any creature that physically touches the chains also takes the fire damage.

Reactions

Umbral Dash
As a reaction to incoming damage, Aatrox may charge 10ft in a straight line. If Aatrox ends the motion outside of the range or area effect of the damage he may ignore it. If a creature is between him and his destination they must make a DC 18 dexterity saving throw or fall prone and take 2d8+5 2d8+5 bludgeoning damage. This can be used while flying.

Legendary Actions

Legendary Resistance (3/day)
If Aatrox fails a saving throw, He can choose to succeed instead.

Aatrox, The Darkin Blade Once honored defenders of Shurima against the Void, Aatrox and his brethren would eventually become an even greater threat to Runeterra, and were defeated only by cunning mortal sorcery. A force greater than a thousand dead suns pulled him inside the sword he had carried into battle countless times, and forever bound his immortal essence to it. The weapon was a prison, sealing his consciousness in suffocating, eternal darkness, robbing him even of the ability to die. For centuries, he strained against this hellish confinement... until some nameless mortal was foolish enough to try and wield the blade once more. Aatrox seized upon this opportunity, forcing his will and an imitation of his original form onto his bearer, though the process quickly drained all life from the new body. In the years that followed, Aatrox groomed many more hosts—men and women of exceptional vitality or fortitude. Though his grasp of such magics had been limited in life, he learned to take control of a mortal in the span of single breath, and in battle he discovered he could feast on his victims to build himself ever larger and stronger.   Aatrox is trapped inside his Darkin Weapon and can communicate with anyone touching it. He is only able to free himself when he has tricked a creature to wield his blade and feed him 100 souls, or if they gain 50 temporary hit points at one time through the Blood Well Table. Once released, Aatrox takes control of the body of the wielder turning it into a form that looks much like himself. The creature's consciousness then becomes trapped where Aatrox used to be, inside of the blade. Aatrox will then attempt to kill the rest of the party. While trapped inside, the wielder can impart their will upon the blade 3 times to cause it to automatically miss and can impose disadvantage 5 times. If Aatrox is killed he is forced back into the blade and everything resets, the creature regains their body, but it's new appearance remains the same. Forever, they are forced to resemble Aatrox or untill remove curse is cast on them.  

The blood is pumping fiercely through your veins now, and in that moment, you expect to feel the power course though them as you have many times before... But this time is different, there is power, but not yours. Your shoulder is pulled, you turn around, there is no one there. You feel the pull again, this time all around you, stronger and stronger. Your vision tunnels, you fight but the force is too much for any mortal to stop. You see yourself now, but from outside. Your appearance is an amalgamation of what it once was. A red and glowing chest with all the fires of hell, great horns that glint in the light. Your head turns to stare you down, you speak, not with your own voice but with the voice you have become so familiar with by now. The voice of Aatrox. "You have done my bidding well. Now, hear the silence of annihilation!

Aatrox, Deathbringer by Riot Games