The good thing about Fury of the Horde is that you can use this red sorcery to relatively easily get a third combat phase after spending mana on the 2 nd one
Zombie Lords will be an important part of this build
The Harbinger should, obviously, only be played in mono-blue Merfolk decks, and preferably in control shells that focus on icing out the opponent from doing much of anything rather than overwhelming them with tons of creatures, just like Richard Garfield intended
Offering a solid array of strength, willpower, and questing potential, additionally, she has board-wide and targeted damage
There's one last card I haven't discussed yet, because I'm really not sure about its inclusion: that's Jenova, Ancient CalamityJenova, Ancient Calamity
it just becomes a Land