When her TWS collided with another similarily powered beam, it annihilated the universe. She can destroy a solar system, and also can absorb whole fleets. As for Pyron:
Pyron.
I'll list his powers, along with scans from the UDON comics which show canon abilities.
Vast strength with no known limit.
Speed to fly thru space in short amounts of time, beyond lightspeed, tho not known how much, however, he did fly from the other side of the universe in a mere 3 years.
High resistance or immunity to most attacks(Magic seems to be one which he doesn't have)
Shapeshifts at will
Instantly can change size from as small as a man to at least as large as the sun, he may be capable of reaching a size that dwarfs the Andromeda galaxy, tho this is highly debated.
Complete control over cosmic fire, can even make mini suns
Heat generation(like a heat aura)
Can tele himself and others instantly, at galaxy-size or larger he could logically tele a galaxy, as teleing others involves wrapping his shield around them, tho this is assuming he can reach such a size.
Powerful energy shield, if wanted he can actually become the shield to encase enemies
Immortality/Longevity, is over 200,000,000 years old.
Intangibility
Flight
Can absorb the life force and matter of planets, energy absorption
Energy-Enhanced strike
Energy manipulation
Cosmic awareness
Matter manipulation/Creation
Can create heralds, and can bestow those heralds with great power
Limitless energy
I read this online but I am not sure, so don't quote me, "Divine Powers".
There are likely more, but I can't remember them.
Now for scans:
This is Pyron being reborn as a cosmic being, and eating a planet.
Pyron flying thru space and making heralds.
This is from a crossover comic, CFE I believe
The feat of all feats. He solos the entire cast of CFE and then makes powerful cosmic beings from his finger tips to handle the rest of Capcom.
Note that this final scan may not show a canon ability, but I felt like including it.
I say Pyron is at least Skyfather.