A bloodlusted pre-new 52 wally west flash with a muramasa blade and jambjorn takes on the following.

-both weapons weight are reduced to 0.00001 lbs and magically imbued to make it impossible to be disarmed or dropped.

Lobo
Darkseid
Thanos
Tyrant
Pre-crisis Superman
Mangog
Antimonitor
Galactus
Imperiex