Scyne the messenger of death

My champion idea(Please if taken in considerate to make him please balance his kit)

Scyne the messenger of death BASE STATS: Hp lvl 1 525 +46 per level. Ad 65 +1 per level. hp regen 10 per 5 seconds. Attack range 600 attack speed 0.68+2.01% 350+59 per level mana 290+5 per level mana regen 0+0 per level

Passive Deaths messenger For each kill Scyne's ultimate's cooldown is reduced by 1 second Permanently Cap 20 seconds (THIS DOES NOT AFFECT CDR) and increases the speed at wich the ultimate happens by 0.1 second cap 2 seconds as well as giving him 0.5% spellvamp Cap 10%

Q Room of the deathbringer mana cost 120 cd 20/15/15/15/10 point and click ability that summons a room of 4/5/6/7/8 1/1/1/1/2 hp minions that fear all inside if 1/2/3/4/4 are destroyed or after 0.5 /1/1.5/2/2 (the fear lasts 1/2/3/4/4)

W Ascension of death mana cost 65/70/75/80 cd 12/11/10/9 seconds Skillshot with a 800 unit range dealing 50/60/80/100 magic damage scaling with 70% of ap slowing first target hit by 10%/20%/25%/30% Ability can only go to level 4

E Shadowfall mana cost 40/50/50/60/60/70 cd 9/8/7/6/5/5 AoE skillshot with a widt of 100 units with a 900 unit range dealing 70/100/130/160/190/220 magig damage scaling with 40% of ap if a minion is hit in a hitbox of 50 stuns all enemies for 1 second for small 1.5 for large and 2.5 for epic

R deaths call mana cost 150/200/250 cd 120/100/90 Scyne summons a portal out of the ground channeling for 2.5 seconds anywhere on the map summoning 2/3/4 Unhailed monsters and 1 Annihalator Annihalator has 580/760/940 hp 100 armor and magic resist 325/350/375 movement speed (also scales with 90% of extra movement speed on scyne like boots of swiftness % increases like ludens ekho give 50% of their % movement speed) 50/75/100 ad 50%/60%/65% of Scyne's ap and 525/530/535 attack range Annihalator has 3 abilitys 1 Spit deals 50% of ad 2 Absorb deals 20% of Ap and heals for 10%/20%/30% of damage done 3 selfdestruct deals 60% of ap to all enemies within 300 units and kills annihalator. During scyne's ult he only has control over 1 ability of the annihalator selfdestruct Unhailed monsters have 100/150/250 hp scaling with 5% of Scyne's hp 60/100/140 ad and have a 175 attack range