Hakoda, Selfless CommanderHakoda, Selfless Commander Hakoda is a strong card advantage engine for Allies, letting us cast them off of the top of the library
Since Mardu has access to plenty of fantastic mutate creatures, you can trigger this effect multiple times a turn as well as other powerful mutate effects
Green Sun's Zenith, Chord of Calling, and Finale of Devestation We wanted to hit Tooth and Nail This can be a game ender and is similar to Defense of the Heart The setup for this one is much more minimal than Sol Ring There has been some discourse around whether In terms of the "every deck gets one Game Changer card" discussion, an important piece of the Game Changers list involves creating a safety bubble
Iconic Cards: Counterspell, Ponder, Damnation, Jace, the Mind Sculptor Popular Decks: UW Control, Jeskai Control, Taking Turns, Esper Control 3 Midrange Midrange decks are popularly said to solve problems, not create them. In other words, these decks are sort of designed to be able to win against every archetype, although they wont bulldoze over anything (the way aggro often wrecks control, for example)
But unlike Vault, Witchs Clinic can be played in any deck
If speed is everything then run Crypt, and if you have minimal graveyard recursion then run Relic