Sokenzan, Crucible of Defiance may not be as good as Otawara, Soaring City or Boseiju, Who Endures, but it fits into what red decks want to be doing, and Ive set up my share of lethal attacks thanks to the Kamigawa land
That is, until the art came in
Marvo, Deep Operative Marvo, Deep Operative gives you a clash commander, which I just think is neat as an idea
That is, if in play testing you find that x number of lands is too few, but x+1 lands is too many, you can effectively play some number between x and x+1 (not exactly x+0.5) lands by playing x+1 lands in a 61 card deck
When any typed creature enters, if its power is 4 or greater, you can pay mana to have Slinza fight another creature you dont control, acting as a form of removal