Its hard to imagine a better way to herald the end of a game if your opponents are all playing heavily to the board
White already has good removal for handling the big stuff, it is dealing with the little things that white is most eager to expand on and Oppressive Rays gets that job done well
The chase cards from this set are Imperial Seal (one of the best black tutor cards of all time) at over $1,000, Ravages of War (a renamed Armageddon) at over $600 and Zodiac Dragon at $525
Blue and green are great protection colors, Nadu only costs three mana, and his ability ramps you - meaning you can easily tank a few removal spells
This makes you almost required to include other colors if you even want a chance of not getting overrun by Walker tokens
Pokmon, Magic: The Gathering, One Piece, Union Arena, Dungeons & Dragons, Digimon, Disney Lorcana, and Yu-Gi-Oh