So my concerns so far with the new runes

Mind you this is a long post as it covers most of the runes, but I feel like quite a few of them are either causing problems, inconsistent, or underperforming.

Press the attack is super overloaded. Free burst damage and then amplified damage after that? Seems pretty overloaded especially with the 6s window on the 12%. I think the burst damage should just outright be removed. There's already a ton of other runes that add burst damage. Precision is about DPS not burst.

Coup de grace should trigger similar to Last Stand. Except at 50% is the first threshold then 30% being the second. As it is currently it doesn't seem to go off soon enough to actually influence a fight (seriously I look at its stats in game and usually even by the end of the game it's at about 1k max because most people just blow up if they are under 50%).

Predator should retain its CD on boot upgrade. It currently resets the CD if you upgrade your boots.

Dark Harvest should drop souls on every minion death and every monster death, do less damage, but you automatically receive them if you last hit the enemy otherwise they are dropped as they are currently. Edit (as I forgot that it enables every time you pick up a soul): Maybe make the CD about 30s scaling down to 15s inbetween procs to compensate for how much easier it will be to enable it.

Taste of Blood .3 AD ratio and .15 AP ratio instead of .2 and .1.

Zombie ward should only proc on killing enemy wards.

Ghost poro needs a way to disable it so that entering a new bush doesn't remove your first poro if you so choose.

Gathering storm takes too long to come online. I think the increments should be changed to 8 minutes.

Hextech flashtraption is almost bait to take. The channel is too long and you have to hold it the entire time. Maybe make it able to be channeled while walking but at a reduced MS like 80%.

Futures market should not charge 50g if you are below 50g. At least match the debt price. So if you go in debt to -22 you go to -44 instead of -72.

Celestial body +5 armor and MR as well.

Demolish can be paused by CCing the person channeling it or by being damaged by tower.

Overgrowth from 8 minion deaths for .2% to 7 to make it somewhat in sync with the lanes and also to help beef up tanks to deal with the new damage numbers.

Kleptomancy is generating a lot of value right now. Maybe make the gold range smaller a little on item drops.

I really don't like the whole stopwatch thing. It's a cool idea, but I mean seems to be a bit too powerful for its niche. As it is being taken on carries and being used to build Zhonya's.

Aery just seems to be really slow to move around. I think she needs a slight MS buff.

Manaflow bind is basically a trap right now. 60s is a long time for 1 free spell and 8% of missing mana. Maybe a 45 or 50s CD.

Celerity is just stupid good on people who already want MS in their builds. all abuse it. Maybe drop the damage from 8% to 6%.

Electrocute's ratios seem to be too high .5 AD is a lot and so is .3 AP. Let's put it this way. Veigar with thunderlord's and 1k AP did 180+100. As Veigar now that is. 220+300 damage. I don't see a downside other than it isn't nearly as cheesy on champs like because they can't proc it with 1 ability and an AA.