Freebie for Rito involving hopefully a new Darkin Character

Ok so the lore goes like this. The summoner finds book. Book is a Darkin. Darkin insults summoner all of the time. Summoner is the in-game character carrying the Darkin tome. So Technically you (the summoner are in The game) as the Dark in possessed character. Abilities are as follows. Passive: a fiery passion Character has an indefinite immolation ability that if damaging something it marks the damage recipient and any spells used against marked target heal the character. 2nd passive: characters abilities evolve elementally with items bought. Mana= water AP= anti cosmic (sorta like negative aurelion Sol Q water: high powered stream of water hits target if already marked inflicts grievous wounds. A-cosmic: a beam of Negative energy if marked slices off a bit of magic resistance

W water ball of water appears around targets head drowning them slowly if marked 100% of damage dealt heals caster A-cosmic teleport an enemy a short distance behind you and a pad appears temporarily if marked they take immolate damage as long as they are on the pad. E water surf on tome a short distance any targets hit are marked and bonus magic damage is dealt. A-cosmic dashes into a negative energy portal and out the other side characters caught between portals are pulled to the entrance where character dashed into for .25 seconds and marked. If already marked consumes mark to deal %ap damage. R Water : whirlpool appears marking characters caught in it after a spell hits while in this caught characters are marked again. This ult lasts 5 seconds. A-cosmic a portal appears below character hands reach from the portal grabbing any character and rooting them dealing constant magic damage and doubling immolates damage and marking them. The total root time is 4 seconds but is split among characters. Need ideas for one more element to add that element is reflected in the HP stat... Thanks. Also the character becomes A-cosmic because in some way a Summoner is a cosmic entity right? The Dark in corrupts the summoner. Summoner is silent but Darkin voice actor should be.... [sg-ahri-2] https://youtu.be/uNPvUmQ56t0