The second ability can draw cards at the same rate we experienced from Cryptbreaker in Standard not long ago, and this the is the ability that will make or break Kumena as it needs to be very good for multiple Kumenas to see play in U/G Merfolk
In case you missed it, with the release of Edge of Eternities , Legendary Vehicles and Spacecraft can now be Commanders
Morophon is a seven mana colorless Shapeshifter that lets you choose a Creature type when it enters, and then makes all of your spells of that type cost WUBRG less to cast, this only reduces the colored mana you pay, and it even gives those Creatures a +1/+1 boost
Its well suited to decks with creatures that are hard to block, like UW flyers lists or UB Ninjas/Rogues
You can keep the engine going with ways to give those creatures that came back with the +1/+1 counter a -1/-1 so that they can keep coming back to the battlefield if they happen to die
This can make them worth using when setting up and ensuring you have a Ponyta or Vulpix to build