Ruby Eye Shabranigdo
Dark Star Dugradigdo
Lina with the help of Giga Slave
Omega Shenron (but it take time)
Those are the ones on top of my head
The Choushin and Tenchi-kami-sama (Tenchi Muyo)
Noein and Haruka Kaminogi (Noein)
Lord of Nightmares (Slayers)
Haruhi Suzumiya and Yuki Nagato (with Haruhi's powers) (Melancholy of Haruhi Suzumiya)
Zinv (Dual Parallel Trouble Adventures)
Anti-Spiral and Tengen Toppa Gurren Lagann (Gurren Lagann)
I saw a similar thread on the OBD and this was interesting:
W e totally need some league between galactic and universal level. T hat's easily done. You can go galaxy group, then galaxy cluster, then super clusters, and finally ending with great walls (aka galaxy filaments). That's about the largest assortment of matter in the universe that we've ever seen. Like the Sloan Great Wall, the (formerly) largest known structure in the universe, and is around 1/60th the diameter of the observable universe.
By the way, the above mentioned stuff only refer to large concentrations of matter. Essentially, the great walls are like thin, wispy tendrils connected to each other, and in between these tendrils are even larger voids which contain almost no matter in comparison. So technically, being able to destroy all matter in the universe would never equate to 'destroying' a universe since matter forms a relatively small chunk of the universe; most of it is comprised of voids.
Personally, I would say to be considered a universe buster , you would need to be to destroy all space in a single blast, at the very least. Time is optional. Of course, you can simply be universal by having an ability that has universal range , but I'm sticking to what could possible count as a legit form of physical destruction.
But off the top of my head universals I can name are:
Enrico Pucci and
Lord of Nightmares
Some characters from Tenchi Muyo!
A good number of Digimon include Zeedmilleniummon, NEO, Omegamon X, Apocalymon, etc. (Digimon)
Lord of Nightmares and Lina with dragon Slave (Slayers)
Anti-Spirals and maybe STTGL? (Probably should be able to through powerscaling but hasen'r eally shown it) (Tengen Toppa Gurren Lagann)
Top tiers of Saint Seiya (Saint Seiya)
Haruhi and Yuki Nagato with Haruhi's powers. (Melancholy of Haruhi Suzumiya)
Arceus, and I think the legendary trio (Pokemon)
Possibly God Form Madoka (was a megaversal reality-warper but didn't really bust anything that size) (Puella Magi Madoka Magica)
Noein and Haruka (Noein)
Elder God Demonbane
That's all I know.
Ultimate Cars from the Jojo's Bizarre adventure novel is a multiverse buster:
in The Jorge Joestar Novel
Cars survived the destruction of the Universe (36 times ), landed on Mars, then awoke his Stand that let him copy any Stand he sees but far more powerful. Which resulted in things like a Killer Queen that could erase 35 Universes, and StairWay to Heaven Requiem(A stand that could already reset the universe and re-create it how the user wishes. I was a crappy novel but man was he OP.
Isn't he stuck in space and no longer thinking?