While Oko has synergy with the deck, both in terms of having a lot of low-impact cards to upgrade to 3/3s and creating artifacts that become Mox Sapphire when Urzas on the battlefield, Urza strategies are extremely high-synergy and generally not looking to attack with 3/3s as a meaningful part of their gameplan
If you go with something like Sheoldred, you can even offset the loss of life
So consequently, Wizards of the Coast reduced the amount of oversized commanders in a precon to just one the face card and let the idea percolate a bit more
The flagship commander is 'The Wandering Horse'
Sebastian Rosenauer This is a card I have little experience playing with myself, but I have sat on the other side of the table often enough to know how powerful the elemental can be
In addition to the four scene boxes, Wizards of the Coast will also be rolling out new Special Edition Collector Boosters for Tales of Middle-Earth around the same time, which will potentially include any of twenty cards from the original set in a brand new 60s rock poster art style as well as rare serialized versions of these cards numbered up through 100