The only issue comes when youre the player with the most life, but you can burn that bridge when you get to it
Barring something representing the sun and the moon, there really isn't any way for design to directly represent it
In Sultai colors, you can do some nasty things with this, from using Buried Alive/Entomb early on to setup a great later turn, to just replaying the Maha, Its Feathers Night and Toxrill, the Corrosive that your opponents worked so so hard to get rid of
Blue doesnt get too many defensive spells that dont rely on countering spells on the stack, so its always nice to see cards like this
This otter wizard has potential in a lot of decks, but it could also miss on all of them depending on how things play out