Shrine of the Forsaken Gods fits perfectly, and you can even run Cloudpost and Glimmerpost or the Tron lands to great effect
SKRELV, DEFECTOR MITE Skrelv, Defector Mite is another legendary creature with Toxic, but its more of a supporting player than the all-star itself
In the end, we again have one clear winner (in this case, Jeskai Flashback, mostly thanks to Dockside Extortionist, which isby farthe most valuable non-legendary new card in all of Commander 2019 ), one clear loser (Sultai Morphs), and two decks basically tied in the middle of the pack, with some solid offerings but nothing on the level of Dockside Extortionist
Additionally, Moss Agate deals 230 damage and also heals 100 damage from all of your Benched Pokmon
Mercurium needs to be kept fed with new materials to keep this effect going, but as long as you can keep him satisfied, youll be able to shut down your opponents key strategies