Based on each champions abilities. if any of the champions were real , who would be the strongest being in the universe? Let's nerd out together!
Top 5 in my opinion (no particular order):
(creates galaxies)
(clones with spacial distortion powers)
(living suit of armor, seems nearly invulnerable)
/ 
(living shadows)
(one lives in two different realities , one can literally speed or slow time)
Essences of death.
is.... well "living" energy (demigod), he could probably destroy the planet if he wanted
imagine him literally ripping the blood out of your body
Infernal 
(probably stronger than the "normal" version) (demigod)
Godzilla sized beast that could devour anyone and anything in his way
Godlike beings:
creates/destroys stars (and galaxies) with no effort
DarkStar 
can create black holes + his enormous size (god of dectruction?)
DarkStar 
probably weaker than Thresh but still on a god level (god of destruction?)
You forgot about 
and
he can create galaxies, do we need to say more?
Literally a Celestial being of near infinite power
Literally a being made out of pure energy, likely hasn't discovered true potential yet.
When you get right down to it, Vel'koz has ridiculous powers. Portals, at-will plasma, inter dimensional manipulation, near-perfect control over heat light and electricity. He could do some serious damage.
Exists outside of time whilst also possessing control over it. I mean, if he wanted to he could end everything.
Would eventually grow big enough to devour planet.
's ultimate is called Primordial Burst. I keep the rest to your imagination.
is fated to die piecefully as an old man. He has plot armor.
######I hate when people put Kindred in power lists. They don't have any influence on peoples deaths.
nuff said.
Could honestly challenge aurelion sol for number one. IMO. Both can summon stars/arcane energy.
Literally has god on her side, assuming this is real life in Runeterra. Having the creator of the universe on your side counts for something.
Who even knows what this dude is capable of.
This is self-explanatory.
Leblanc cuz she's my fav and cuz she is powerful
How powerful/what type of power?
Leblanc could manipulate to control countries.
Soraka can drop a star on said countries..
Aurelion Sol creates stars...
Illaoi is bffs with a god, gods created Aurelion Sol....
For the sake of fun, I'll say Lux. Controlling light is kinda op.
bending reality itself to his whims.
is death, but not just to living things. They can end anything, and will one day end the universe.
is a great creator, but has limits.
is a priestess of Nagakeborous, god of change, chaos, motion, and the ocean.
is a mountain in terms of size, his ult allows his velocity to be considered infinity because of the unstoppable aspect of the dash. The very air molecules will heat up and break apart and everything he smashes into will destroy and he cannot stop due to his unstoppability, nor can anything stop him. Yes I am aware other champions have unstoppable dashes, but he'd end the world quicker because he's a mountain golem. but is the most powerful.
If we're going off lore then I believe cho'gath nasus, renekton, xerath and bard are the top 5. Cho'gath supposedly can grow big enough to consume the entire earth, the other 4 are basically gods
