Fume-shroom vs Space Ishtar: who would win?

Fume-shroom favored — Favored (~65%)

Fume-shroom · Plants vs. Zombies · Garden Warfare - Battle for Neighborville

Tier

2-C

Attack Potency

Low Multiverse Level

Speed

Immobile, up to Massively Hypersonic

Durability

Low Multiverse Level

Space Ishtar · Nasuverse · Prime Ishtar

Tier

LOW 2-C, up to 1-C

Attack Potency

Universe Level+, up to Complex Multiverse Level

Speed

Omnipresent

Durability

Universe Level+, up to Complex Multiverse Level

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