Space Ishtar vs Build-a-Bot: who would win?

Space Ishtar favored — Slight edge (~55%)

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

Build-a-Bot · Plants vs. Zombies · All Other Build-a-Bots

Tier

2-C

Attack Potency

Below Average Human Level

Speed

Immobile, up to Massively Hypersonic

Durability

Low Multiverse Level

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