Maris, drunken brawler

All food tokens gain "gain 1 poison counter when this artifact leaves the battlefield".

At the beginning of each player's upkeep, that player creates a food token. Then they create another food token if they gained life last turn.

At the end of the first main phase on each opponent's turn, goad all creatures that player controls if they control a food token. Your creatures gain "this creature must attack if able" as long as you control a food token.