Vespid vs Rot Grub: who would win?

Vespid favored — Slight edge (~55%)

Vespid · Warhammer 40,000 · Base

Tier

9-C

Attack Potency

Street Level

Speed

Subsonic, up to Hypersonic

Durability

Building Level+

Rot Grub · Dungeons & Dragons · Regular

Tier

9-B, up to 9-A

Attack Potency

Wall Level, up to Small Building Level+

Speed

Below Average Human, up to Subsonic

Durability

Wall Level, up to Small Building Level+

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.