Among the familiar legendaries are Pokemon Silver and Gold cover stars Lugia and Ho-Oh, Dialga and Palkia from Diamond and Pearl, and Groudon and Kyogre from Ruby and Sapphire, among others
Yugi Mutou is pulled into a game driven by revenge where his Puzzle is destroyed
And, while I dont expect this sort of design to return to paper Magic, if MtG Arena really takes off, couldnt you see them developing an experimental digital-only set where one part of the set might be exploring the design space of letting the planeswalkers on cards make decisions among several options for each ability slot on each activation
It would also make a lot of sense if I was running Copy Plant
Gaining haste is a big deal though, and Zetalpa can end the game quickly with only three attacks, not to mention if you have any Angel of Inventions on the battlefield that pump its power and toughness