mtg mh3 commander decks list Magic: The Gathering Modern Horizons 3 Deck is included in the package First Modern Horizons 3 Commander

Falkenrath Gorger gives any vampire card the madness text, while Conspiracy Theorist, Containment Construct and Oskar, Rubbish Reclaimer work for any card (though Theorist and Construct do not let you break timing rules the way true madness does)

There are so many sites that you can copy and plenty of reasons to want to do so

You can then put it directly onto the field if its a Land or add it to your hand if its any other card type

Assassins Trophy is a suboptimal answer to many problematic cards that can be thrown at you, and I think that having a broad answer is very useful if you are not playing with open decklists