For four mana, you choose three effects: shrinking a creature, making a creature connive, or returning a creature card from a graveyard to hand
Yarok, the Desecrated Yarok, the Desecrated is a value machine, doubling your enter the battlefield triggers and remember its any permanent, not just creatures, so abilities like Landfall will trigger an additional time too
Shes kind of the Tibalt of the groupcertainly playable, but there are many circumstances in which she does nothing
They're also cumulative with other effects that let you play additional lands, such as the one from Urban Evolution
They're now outside the game
In some ways, it helped me to understand what kind of Commander games I enjoy and what kind of mechanics I find dont optimize the fun for me