You can also use Tayam's replacement effect to get the counters by creating a mass of tokens using Promise of BunreiPromise of Bunrei or Hallowed SpiritkeeperHallowed Spiritkeeper
That said, the main thing is the Planeswalkers and there are more cost-effective solutions to them to be found elsewhere
Umori is too lacking in power to entice as a non-companion inclusion and so with the companion mode being a trap there is little room for Umori in cube
Worst yet, if it's put in the graveyard for whatever reason, its owner can shuffle their graveyard into their library
Last week, we learned that Lorcanas official gameplay demo is scheduled for later this month, however what appears to be a May 2023 edition of Game Trade Magazine has been leaked early, showing several pages worth of never-before-seen information surrounding Lorcanas gameplay
Personally, I think this is a great idea, as in the past there have been criticisms that too many cards in a single set have been serialized