Absolute Focus – each second while damaging same enemy champion you gain Focus stack for 3 seconds, which stacks infinite. Each stack grands 3% bonus damage against the same champion. Switching targets you will lose 50% of your Focus stacks
Alternatively replace Absolute Focus with Awareness – you gain 4% AD or AP (adaptive) for each nearby enemy champion
BLIGHTBRINGER5 votesI like both ideas, but the one thing I find concerning is the fact that your Absolute Focus idea stacks up infinite/ly. It kind of reminds me of the early stages of Press the Attack where instead it gave you never ending stacking AD against the same champion.
SlashStriker1 votes[{quoted}](name=Darkin Hybrid,realm=EUW,application-id=3ErqAdtq,discussion-id=We2lVLAq,comment-id=0000,timestamp=2018-05-13T12:01:14.118+0000)
I like both ideas, but the one thing I find concerning is the fact that your Absolute Focus idea stacks up infinite/ly.
You gain 1 stack per second for lets say 3 seconds. How many seconds are you going to fight the same champion? Every time you switch targets you lose 50% of your stacks
DW Diana4 votesYou gain 1 stack per second for lets say 3 seconds. How many seconds are you going to fight the same champion? Every time you switch targets you lose 50% of your stacks
You forgot aa champions, dot damage and spam. All of these can be continuous but smaller damage then high burst, stack very quickly in a massive damage buff. Imagine this on someone like cass lol
BLIGHTBRINGER1 votesWell I didn't say it wasn't good ofcourse there would probably have to be some minor adjustments that would have to be made but other than that it sounds pretty solid.
xxxMadLionxxx1 votesyes......[zombie-brand-mindblown]
ZackTheWaffleMan1 votesImagine Maokai with this
DeusVult1 votesBoth of these would become the 100% go to option for sorcery 2nd tier. No one really takes transcendence atm because it doesnt give CDR till level 10, and you generally dont want to build over the CDR cap regardless of the AD/AP it gives. Absolute focus doesnt get taken because it gives VERY LIMITED stats only when you are above 70% health. So unless you are playing 
you dont get to use this rune, and even if you are these 3 champs the enemy can just go for 1 trade and the rune is now useless.
Which is why celerity gets picked. Because 3% bonus MS is ALWAYS decent and getting stats from bonus MS regardless of game time is good too.
However if you replaced them with the stacking one, its just going to be the automatic go to for all skirmishers and split-pushers. Infinitely stacking 3% increased damage stacks. That stack pretty quickly. And the awareness version will just take fed champs over the top. 5 stack Zed getting 20% additional AD. 1000AP veigar getting 20% additional AP.
You want to look at the power of both runes that it is going against and making the new rune on the same level. So for absolute focus you could change it to "gain 15AP + 8% total AP or 10AD + 5% total AD when above 70% health. This effect lasts for 2 seconds when going below the 70% threshold."
FakeGravity1 voteswhat about something following the dinamic of that line of keys? aka excest of cdr movement speed transform into damage 5% of your total AD is transform into on hit magic damage maybe? it gives corki and kayle more power, but also it is very minimal compare to the other two?
Kaìju1 votesMarksmen and DOT mages like Malz or Cass.