The idea behind it was that the game would have two states, the Day state that represented the mortal world and the Night state that represented the spirit world
Since that token has a different name, you can control it plus the legendary artifact you copied without bumping into the legend rule
Lazav, Wearer of Faces just needs you to be attacking with a token, and with Kaya out, both can be your Cityscape Leveller for a turn if youre also snacking on that Clue
IV Target opponent faces a villainous choice Destroy all Dalek creatures and each of your opponents loses life equal to the total power of Daleks that died this turn, or destroy all non-Dalek creatures
Alternatively, for a bit of weird fun, you could throw in Comet, Stellar Pup as a flavorful Planeswalker
Hes the father figure and mentor of the party and he rallies them and acts as a pillow of support during the game