Godzilla (IDW) vs Istaroth: who would win?

Too close to call

Godzilla (IDW) · Godzilla · Ongoing/History's Greatest Monster

Tier

5-A

Attack Potency

Large Planet Level

Speed

Superhuman, up to Massively Ftl+

Durability

Large Planet Level

Istaroth · Genshin Impact · Base

Tier

5-A, up to 2-C

Attack Potency

Large Planet Level, up to Low Multiverse Level

Speed

Unknown

Durability

Large Planet Level

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