For Secrets of the Dead I run River Kelpie since it does the same effect but for each player not just my own and can also combo with mikeaus, the unhallowed if you have a sac outlet
Unfortunately, to play it you have to discard 2 cards which is a huge cost
Who submitted the Omniscience + Enter the Infinite + Dream Halls combo
If your opponent tries to activate a monster effect, out come Psy-Frame Gamma and Psy-Frame Driver
Generally speaking, in decks that are three or more colors, you want to play almost all dual lands, along with enough basic lands to support whatever ramp is in your deck (Land Tax, Kodama's Reach, Rampant Growth, et al.)
Players will be able to open two booster packs every day at no cost, including cards with nostalgic illustrations as well as new cards only found in the app