Interesting interactions with rapid fircannon

i have been theory crafting on a few champs with auto-attack gapclosers and their interactions with

it first occured to me, having played ekko more than any champon the rift lately, that i am often just a smidge out of range to dash in and proc my AA's execute. with enemies being used to ekkos play patterns, this started happening more and more often over the past few months. of course, movement speed helps... but there is nothing like smacking them with a bat from an additional 149 range.... and RFC has both + some extra damage, and attack speed to proc it twice if needed.

for someone who plays an AA centered ekko game, it was just too good to pass up. sure, there is no ap in it but ... meh fixes that by building on the attack speed synergy

so i started thinking about other champs.

gets the full bonus range when he leaps. but does he care for the attack speed? nope. RFC doesnt like him

gets +123 range on harsh lesson.. but i cant see the stats making it worth confirmed harsh lesson plays well with RFC and its quite hilarious to watch the animation

gets +114 range on his E, but this is usually used to knock enemies back into his team, so the extra range wouldnt help here. perhaps on an assassin style hec spec this might be useful for dives confirmed hecarim plays nice with RFC. found it to be useful to jump over walls with E more reliably. also, essence reaver works great with this for a glass cannon build if you have the guts to play assassin hec

EDIT: testing on due to a claim that it doesn't work on
done