If you're able to keep your equipped and enchanted permanents on the board, Chishiro causes them to grow more dangerous with time, providing them with a +1/+1 counter during each of your end steps
It works well against many different opponents
This is just the tip of the iceberg as far as design is concerned
This doesnt mean that I dont own Standard legal Japanese foils, like Batterskull and Sword of Feast and Famine, but these are also Legacy cards
With that being said, I consider Colresss Experiment a clear top 5 card that will enable a lot of crazy combos with Giratina VMAX and other scary attackers
Creatures like Exalted Angel (especially the three morph version) and Baneslayer Angel (once called "the strongest large creature of all time" by Hall of Famer Brian Kibler) were burly, relatively durable, evasive racerslifegain or no