Morph first appeared in the Onslaught block (2002-2003) as a way to try and get Illusionary Mask and Camouflage to work better within Magics rules
turns all prize cards face up, Imakuni?'s Exploud ex forces you to confess any hidden feelings for your opponent or you cant attack, Imakuni?'s Whismur is a complete paradox that prevents you and your opponent from opening your mouths more than one centimeter but requires you to whisper into your opponents ear to attack, and Imakuni?'s Nasty Plot (which preceded the move in the games by some years) lets you remove damage counters from your Pokemon while your opponent isnt looking
That said, nobody is complaining about the arrival of Shining Revelry even if our Triumphant Light card lists are nowhere near complete - because this new set comes with a very interesting addition
Lets look at Walking Corpse
Necron Overlord and Canoptek Scarab Swarm seem to have a good synergy with each other, making a ton of small tokens and then zapping someone equal to the number of tokens made
When this creature enters, create a 3/3 green Dinosaur creature token with trample