After being easily defeated and killed by Divine, a Psychic Duelist and leader of the Arcadia Movement, she revives as a Dark Signer, now strong enough to defeat him and go the distance with Signer and former King Jack Atlas, only losing that duel in part thanks to Fighting from the Inside
All of those are solid additions
This makes Kaiba Evolution a neat improvement over the original deck with a good mix of generic cards as well as others specifically made to help Blue-Eyes White Dragon see more play
And then when you layer it into tokens, creatures that sacrifice, creatures that have death triggers, and more, you get one of the single most powerfully broken cards ever printed
The copy is created on the stack, so it's not "activated." Creating the copy won't cause abilities that trigger when a player activates an ability to trigger
Even in the much-explored lifegain archetype, it's an underrated white commander