I'm not going to go through them all here, but you'll notice that we mostly downgrade our interactive spells, with things like Fatal Push becoming Bloodchief's Thirst, Inquisition of Kozilek turning into Duress, Counterspell becoming Mana Leak, and so on
Samut is the perfect example of a commander crafted for this set, taking full advantage of the new mechanic and doing so in such a way that makes any deck helmed by Samut a nightmare to play against
Morph has no broader equivalent aside from, perhaps, colorless or vanilla, neither of which would have been viable attempts at the time in the context of the deck
You can ignore the usual timing restriction if the effect in question allows you to cast that spell immediately
A Japanese clothing brand will also be making an announcement on May 5 regarding a clothing collaboration with BEAMS, YU NAGABA, and Pokmon TCG