Check out this post on the Registry Chatboard for detailed instructions
Madness is a triggered ability
Better still, the way to prepare Tam, Observant Sequencer, is via landfall , and the prepare spell, Deep Sight, only costs one green and one blue mana, so it's entirely feasible that you could cast this multiple times per turn when paired with land fetch spells and lands like Fabled Passage
In fact, players who are new to the MTG realm and looking to become more knowledgeable about the game seem to have really responded well to the helpful and informative nature of the app
This card feels like it was designed for CLB draft/sealed mostly, but there are some very niche cases in already existing EDH decks that want to run this card
Unannounced Universes Beyond Set (March 2026) The second release of the year is a mystery Universes Beyond set