tyranid cards mtg MTGNexus Tyranid Harridan

The goal is to make the deck quicker and more flexible by increasing the number of one mana spells (thats also an argument against swiftspear obviously) You dont want to cast skullcrack for prowess triggers either so that nonbo is not a thing that will get worse

Ultros, Obnoxious Octopus Look at your mana curve, and if you have a significant amount (aim for at least 10% of your deck) of qualifying cards to trigger the first ability on Ultros, Obnoxious Octopus, it's worth semi-removal slot

Thats also where that one extra card comes in

There were concerns when it was first previewed that The Soul Stone would end up as an auto-include in a ton of Commander decks