As much as I hate it, speed is the name of the game
Investment Guide Golduck, known as the Duck Pokmon, is a Water-type creature first introduced in Generation I
It has a surprising number of niche interactions for a card thats replacing a basic land in most decks
This deck is pretty weak and the AI controlling it isn't very good, so you should be able to do this one with any deck that isn't weak to Water without much issue
Even for a guy named Mister Negative, thats a bit on the nose. Spider-Man Illustrated by Nathaniel Himawan Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Whats worse, being Thoughtseized with an average hand, or casting Appetite for Brains on Turn 1 and missing