Griselbrand is the poster child for this principle ("Hold on
Best Green Card: Delighted Halfling Yes, I know
Gallery and List of Poison Cards In addition to cards that have infect or toxic, these are cards that can put poison counters on a player: Crypt Cobra Sabertooth Cobra Suq'Ata Assassin Pit Scorpion Marsh Viper Swamp Mosquito Serpent Generator Hand of the Praetors Ichor Rats Relic Putrescence Virulent Wound Pistus Strike Decimator Web Caress of Phyrexia Reaper of Sheoldred Fynn, the Fangbearer Ajani, Sleeper Agent Norn's Decree Phyresis Outbreak Prologue to Phyresis Infectious Inquiry Vraska, Betrayal's Sting Vraska's Fall Infectious Bite Etali, Primal Conqueror Etali, Primal Sickness Persuasive Interrogators Bloodroot Apothecary Virulent Silencer There are other cards like Corrupted Resolve and Mycosynth Fiend that mention poison counters but don't actually distribute them
There are a couple of upgrades you can pop on Limit Break to quickly transform it from a pretty good deck to a pretty great deck
Treasures has been a win condition for a while now with Revel in Riches, but when you add in MH2s Rise and Shine and Xorn to the mix, things get even easier
005-048 is probably the most interesting of these, as her combination of abilities makes her a great counter to Evasive characters like Diablo - Devoted Herald