For instance, you can play a land from exile this way only during your main phase while the stack is empty, and only if you have an available land play remaining for the turn
Cerberus: Clearly aimed at URx style decks, as big spells are even bigger when you copy them
With this style of deck, all of your cards, except for your commander, have to be cards you can get for a quarter or less
The Core backside of Matzalantli, the Great Door seems more reliably powerful than the Gaea's Cradle backside that is Itlimoc, Cradle of the Sun unless you are in elfball, but its harder to flip and the front side doesnt do quite enough
Party Time has a focused game plan and the tools needed to execute it early and often, and it is pretty potent