If you mean like telekinesis then yes, we see Damaras do it a couple times. She should have time powers too, but they’d be a bit different than Aradia’s.

Evidence compiled right here my dude

It’s not shown, but it’s mentioned how he died here

♋, ♈, ♊, ♎, ♏, ♓

It’s very likely that the slave killed by Dualscar mentioned here was the Dolorosa

The death of the Summoner, Disciple, Darkleer and the Grand Highblood are unmentioned buy it’s likely that the Summoner was killed, the Disciple of old age, and the other two by either old age or the Vast Glub.

There’s a couple theories out there, the most likely being that either 

A: Dreamselves slowly gain wounds of the player’s main body and that’s why you have to kiss them relatively quick after they die or

B: It was because she was on her Quest Cocoon, and he dreamself was being killed as well so she could ascend.

Horns grow with age so the beta trolls horns are smaller since they’re so young

They scratched their session and normally when a session is scratched you cease to exist but Meenah decided to blow them up before the scratch was complete so they became ghosts instead. 

When a scratch is initiated the meteors headed to Alternia through Skaia’s portals were switched and they were sent to a time way before Karkat’s team was born. They grew up to become the ancestral figures to Karkat and his group.

Feferi’s lusus once told her a prophecy that Feferi would unite the land dwellers and sea dwellers but the prophecy was never brought to fruition. 

A few off the top of my head.. Vriska’s death scene, I thought it was a perfect end to her arc. All of [S] Make Her Pay, especially where Aradia came to beat the shit out of Vriska. When Rose fought Bec Noir. When Caliborn bit off his leg. When Jade was shrinking all the planets. When Roxy killed the Condesce. There are a lot of good moments in Homestuck.

It’s never mentioned if Dirk ever fought Yaldabaoth or even met him.

Becoming a rainbow drinker is a metamorphosis, something Kanaya had been groomed for since she was young. Being revived didn’t work because her dream self was dead and the Blood player theory isn’t really relevant because Porrim already confirmed that the condition is directly related to jade blood, not if you’re revived by a Blood player.