Sure it enters tapped, but unlike a lot of utility lands we see, this one can produce colored mana so it isnt a liability for your mana base
This Esper enchantment creature is an incredibly potent package, representing an infinite mana outlet, the ability to serve as a static Underworld Breach for enchantments while in play, and best of all can be built a half dozen different ways, meaning that youre never quite sure what kind of deck youre facing down at your cEDH tables
The presence of Chandra, Torch of Defiance will give a boost to red decks and will determine how theyre built
However, Knight-Errant of Eos can only reliably replace itself when it is cast using its convoke cost
Duel Masters is a manga about card games
The reason why you might want to run both is because all the Warchiefs give a one mana discount to their creature types