Combat ability ranking

Rank-F (Competent Fighter)

Rank-E (Can fight An army of F-rank fighters)

Rank-D (City Destroying)

Rank-C (Continent Destroying)

Rank-B (World Destroying)

Rank-A (Galaxy Destroying)

Rank-S (Universe Destroying)

Rank-SS (Multiverse Destroying)

Rank-SSS (???)

Rank-EX (???)

For referents, God's rank is A- (If we were ranking ability to create it would be S-rank) and old stitch is rank B+