They're a creature type that brings constant aggression to the table: they want you to be attacking and playing proactively, and they will reward you for it
5 Aura Mutation Giving Off A Strong 'No Longer Here' Aura Pop an enchantment, get 1/1s equal to its mana value
If you were in the same scenario but Pit Scorpion was attacking rather than the elf, youd die to combat damage before the trigger to add a poison counter went on the stack
Atmospheric Greenhouse Dawnsire, Sunstar Dreadnought Debris Field Crusher Entropic Battlecruiser Exploration Broodship Extinguisher Battleship Fell Gravship Galvanizing Sawship Hearthhull, the Worldseed Infinite Guideline Station Inspirit, Flagship Vessel Larval Scoutlander Lumen-Class Frigate Pinnacle Kill-Ship Rescue Skiff Sledge-Class Seedship Specimen Freighter Susurian Dirgecraft Synthesizer Labship The Eternity Elevator The Seriema Uthros Research Craft Uthros Scanship Warmaker Gunship Wedgelight Rammer Wurmwall Sweeper
Fast forward five years to Streets of New Capenna, and the type would return on a couple of Cabaretti-aligned cards
It is certainly a more control/midrange style value engine that requires a healthy amount of setup that other decks cant afford but falls in line with the general strategy here