Valter vs Magnet-shroom: who would win?

Valter favored — Slight edge (~55%)

Valter · Fire Emblem · Base

Tier

HIGH 8-C

Attack Potency

Large Building Level

Speed

Superhuman, up to Massively Hypersonic

Durability

Large Building Level

Magnet-shroom · Plants vs. Zombies · PvZ2 (Level 1 - Mastery 200)

Tier

HIGH 8-C, up to 8-B

Attack Potency

Large Building Level, up to City Block Level

Speed

Immobile, up to High Hypersonic+

Durability

Large Building Level

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