As long as one of your Mobilize tokens lives through combat, you can play Sephiroth during your second main phase and sacrifice the token to draw a card and drain your opponent
You can pay for it on turn two and wait until you have five lands
With Gwenna you get to add two mana to your mana pool, but it is limited in its use since you can only spend it on creatures or their abilities
The good thing about Oko returning in the Breaking News section of the set is that Oko isnt legal in Standard again unless you happen to open it in your Limited pool, then you can play it to your hearts content
Given the discernible authenticity and the cards one-owner provenance, this piece is positioned as a noteworthy asset within the Japanese collector market, where early-run items consistently display higher value and desirability.
Now, we have a few more specifics