Irida serves as your main healer
Teysa, Envoy of Ghosts With vigilance and protection from creatures, Teysa, Envoy of Ghosts makes for an effective blocker, and itll turn everything it destroys into Spirit tokens for you
CHK Legendary Land Cycle Eiganjo Castle Minamo, School at Water's Edge Okina, Temple to the Grandfathers Shinka, the Bloodsoaked Keep Shizo, Death's Storehouse The Champions of Kamigawa legendary lands have virtually no downside in Commander, as long as you dodge non-basic land hate
Suruya looks like an extender for the Swordsoul Tenyi archetype, to set you up for big plays
Samwise the Stouthearted My issue with Samwise the Stouthearted is that its a very one-and-done type of card
Some prime examples to go along with Yarok might be Thassa, Deep-Dwelling or Tatyova, Benthic Druid