Polaris (Marvel Comics) vs Index Librorum Prohibitorum: who would win?

Polaris (Marvel Comics) favored — Favored (~65%)

Polaris (Marvel Comics) · Marvel · Base

Tier

10-B, up to 7-B

Attack Potency

Human Level, up to City Level

Speed

Hypersonic

Durability

Planet Level

Index Librorum Prohibitorum · Toaru Majutsu no Index · Base

Tier

10-B, up to 6-B

Attack Potency

Human Level, up to Country Level

Speed

Average Human, up to Sub-Relativistic

Durability

Country Level

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