We continue our quest to play as many Modern Horizons cards as possible, this time taking Echo of Eons and Mirrordin Besieged out for a spin in Modern!

Is playing 269 cards a legitimate plan in our current Modern format? Let's find out!

Is playing all of the Pyromancers the way to make a fair deck competitive in our currently very unfair Modern format? Let's find out!

Does the printing of Ingenious Infiltrator mean it's time for Ninjas to shine in Modern? Let's find out!

Is ramping with charge counters, Everflowing Chalice, and Astral Cornucopia the best way to take advantage of Karn, the Great Creator in Modern?

Does the addition of Neoform make the plan of using Pongify to upgrade our own creatures legitimate in Modern? Let's find out!

Can a crazy five-color Niv-Mizzet Reborn deck actually compete in a format as fast and powerful as Modern? Let's find out!

Is using Neoform to find Griselbrand on Turn 1 the new best thing we can do in Modern? Let's find out!

What happens if you jam a million planeswalkers alongside a playset of Fblthp, the Lost in War of the Spark Standard? Let's find out!

How easy it is to go infinite with Bolas's Citadel in a Golgari shell in Standard? Let's find out!

This week, we turn to the dark side to test the London mulligan rule by playing Eldrazi Temples to power out huge, colorless threats quickly in Serum Powder Eldrazi!

How much does the London mulligan rule power up Sram O's in Modern? Let's find out!

Is repeatedly blinking Ulamog's Nullifier with Eldrazi Displacer to soft-lock our opponent out of the game a legit plan in Modern? Let's find out!

Quite a few tribes show up in Modern—Humans, Merfolk, Spirits. Can Hydras join the list? Let's find out!

Can the combo of Electrodominance and Living End make melding Gisela and Bruna into Brisela a reality in Modern?

Is hitting your own creatures for value a legitimate plan in Modern? Let's find out!