This would be a new effect on Liandry's.
Here is the whole description, taken from Surrender at 20. So, I might be a little dumb, but I cannot really understand what does "max 2% per second" means. A little help would be highly appreciated. Thanks in advance
In combat, when you damage an ennemy champion your damages increases over time as long as you deal damages to a champion. Your damages increase by 2% each seconds to a maximum of 10%. The damage buff disappear if you leave combat.
I guess.
I think the tooltip should be:
UNIQUE PASSIVE - Essence Drain: while damaging champions, increase the damage you deal by 2% per second (max 10%).
I think it might mean it has a ramp up time to get to the 10%? No idea tbh lol
Yeeeeeah the clarity on that is absolute garbage.
Basically it means that the passive takes five seconds in combat with a champion to ramp up all the way.
It means that you have 5 seconds at minimum to ramp up the damage. making it a good passive for DoT champs like 
and spammers like 
to use.
Ah good by the time the damage ramp up is done the fight's over, Kappa.
It means that something like Malzahar E (it does damage every 0.25 seconds) can't ramp up instantly to 10% damage amp in 1.25 seconds (5 instances of damage) but needs 5 seconds instead since the damage can only increase by 2% every second.
Yeah I remember I had to re-read that description last night. They might want to type that up again.
It's the AP Fevor of Battle, but instead of giving AP, it increases all your damage up to 10% (after 5 seconds).
I think it's "Deal +2% damage after damaging a champion, up to 2% per second (Maximum of 10%), while in combat".
Probably a stacking buff similar to 
except gated to 1 stack per second, similar to 
Droolilng.
Wait does this mean it will work on new swain I’ll really well? Also any others champs that can make this work except Malz Morg Brand Fiddle ???
So does this also increase Physical damage? if i auto someone will my next auto do more damage? it dose not say the damage has to be magic.
Means Magic resist items gonna need huge buffs along with 
which should be done to make mages who want to do max damage space their spells versus a champion building adaptive helm rather than throwing them out off cooldown every 2.3 seconds and thinking they skillful
It means if you have a dot that is shorter than 5 seconds, then each second of the dot does only 2% more persecond than it normally would. More ult for example
Does that mean I can take Lyandrys on 
and deal 10% more dmg with my auto attacks?
Yeah this should be changes from "damage" to "Magic damage"
just got better
It's kinda worded wierd but I'm thinking it means you can't do more than 2% more damage per second up to 10 %
It synergizes with Mordekaiser to the point where it just became his Core item
