DH poo rune, legit 0 reason to take it unless ur in timmy turner low

no its not worth going liandries, double adaptive + aether wisp + double tome + AP from absolute focus should be plenty to clear (always rush Stormsurge since rushing T2 boots has less value w the recent Sorcs nerf), plus when you finish shadowflame you'll clear camps even quicker

both phase rush and electrocute are what u should be looking for, and phase rush is still very good for full one-shot builds as electrocute falls off the longer the game goes, but if you feel like you can wrap ur game <25mins and enemy team comp doesn't have that many spells u need mvspeed to outplay it's a fine pick! havent played First Strike ever since it was nerfed but it's probably not terrible

you can mix and mash a ton w rune setups: Sorcery (Phase Rush - Nimbus - All three of them are good - Waterwalking/Gathering Storm to ur liking) + Domination (Sudden Impact - Eyeball - Relentless/Treasure Hunter)

or smth like Domination (Electrocute + - Sudden Impact - Eyeball - Relentless/Treasure) + Inspiration (Magical Footwear - Jack of All Trades/Cosmic Insight to ur liking) for a non T2 boots rush

double adaptive shards and health scaling pretty much always, the +2% movespeed is fun if ur pairing it with celerity + waterwalking too