Do note that we will not be taking playtest cards into consideration with this article
There is less color/archetype fighting because there are normally enough cards for everyone
That said, Tatsunari can only be used in Commander decks that are black, blue, and green, as its activated effect can be paid for with either blue or green mana
Divine Resilience Saving your Creatures from removal can be key for winning, especially if that Creature is enabling your deck in some way or providing value through drawing cards or tampons ng lands
Oh, and as an upgrade for Allies decks, hes pretty good too
Legendary affects rules like deckbuilding and the legend rule, while the creature types matter for typal synergies and card interactions