After we have filled the yard, we can end the game in various ways
There are also ways in Golgari to buff creatures, so if you increase Jenova's power, you can both buff your other creatures more, and draw even more cards when they die
For five mana, Unagi of Kiyoshi Island is a new blue staple for any Commander deck that wants to punish opponents for drawing cards
It all adds up to make Yuna, Grand Summoner a great commander, while also being innocuous enough to not be a target
It makes both Limited and Constructed gameplay more fun and more varied, and it has even proven to be relevant in eternal formats (shoutout to Dockside Extortionist!)
If an ability inflicts damage to several Forwards, is the damage dealt to all of them at the same time