Grasp verry fun, and abusive, but a bit risky if not proc it that often.
And the goldvalue of the 3life gained is not that superbig
Turrets keep Heimer in combat, so every autoattack on a champ proc grasp.
Lategame its pretty risky to land autoattacks in teamfight if not supertanky
Gathering storm is nice for the 30min + games
Shurelya's Battlesong seems underrated but its superstronk as a 3e or 4e item, Liandry is not that good, and a luden requires sorc shoes to be extra effective

Arcane comet pretty good,
Since turret basic attack reduce base cooldown and its nice a double proc on the rockets and luden, and if take a Ryla-slow it even hits more often.
All this mpen from luden and sorc shoes, not realy makes you build arround Grasp
However, turret basic attack is not cost effective to build mpen instead of deathcap AP


With a luden and sorc shoes, you can no more aa
With a swiftniss and Ryla, and Fearie charm, you can come pretty cloose

Preference situational

other
arey
mana
cool down
gathering

then red
tast
rav
i play top,,
so its all about the lane and the pressure
arey gives tons poke scales well
its mostly cause 1/2 the match ups you can aa them for free

Arey sounds good to aa, instead of grasp, so you also have something to fall back on when no longer aa or when lane to heavy
However i like Arcane comet since it hit so often with granade and Ryla-slow as 2nd item, and cooldown reduction on turret basic attack

Ravenous hunter used to be 200%more on heimer, when it was applied fully on q-basic attack, now it only apply 33% pet damage
1) and its mostly usefull when go full cannon.
2) its about escaping someones all in. ones escaped, you no longer leech, when warmog gives a instant recall+teleport+tank
3) did not even liked it when you had 30%spellvamp working for 100% instead of 33%on q, few seasons ago (now you have 33%of that only working vs champs instead of minions)

This pressence of mind is pretty dam sick for the poke damage, and safty
Since you can always clear wave+hit enemy champ from great 1300 distance, since this refunds mana
Teleport+heal+always pushed when recall+range = pretty match own any lane without match efford,
Its more about mid/late game/loosing games, even when heimer likes short games, and still picks Gathering storm

Playing alot of Heimer atm, and this scalling mpen is pretty sick for the burstkill. And it provides damage-danger even when building warmog/ryla
Doing Sorc shoes+Luden, then i have max flat mpen, Void staff would overkill it, then a Ryla is probably best (optional you could rush deathcap 2nd)
after Ryla, eather a deathcap/warmopg or a kindle gem before a deathcap
Just a little AP gives me 400%more q-base attack damage, so this 30%more damage from mpen is not realy working for this.

Other, abusing current meta Moonstaff.

Grasp
Font of Life
Second Wind / Bone Plating
Revitalize

Cheap Shot
Ingenious Hunter

Rush Moonstone Renewer (start with Kindlegem)
Then go for Staff of Flowing Water or Ardent Censer

Perma healing to allies with your turrets, then speeding yourself (Staff) or empowering allies autos (Censer).

Broken af since your dps is constant, with ingenious hunter you reduce the CD of the combo from 2 sec to 1.5 sec

Same goes for Teemo

If you add as 3rd Rilai you can literally kite anything (even Lillia) but your damage will probably suck in late game (need a Rabadon for sure).
In midgame you're super strong tho.

This post was edited by NomadJe on Jan 26 2021 11:50am

did that 0.5 years ago, verry nice when it works, like 1300healz in 1 teamfight
but in ''normal games elo'' its pretty heavy, since it require 3 conditions to function:
1) turret attacking enemie champ
2) nearbye ally
3) that ally needs to be wounded
4) needs a item to make runes work

cannons and utility support and assasin seems to stay back behind heimer turret and always are at 100%

Heimer turret have so low base attack damage, and playing arround mpen, allow you to play a little arround the base damage of beams and rockets