At the time, Magic: The Gathering didn't yet have a formal block design, and the designers wanted to make the game an anthology or treat it as a collection of similar games rather than a cohesive whole, so the fundamentals were open to change
Since Planar Chaos was an alternate reality, they could freely return to the five color paradigm once the set was over
If this list was just about power level alone, then Chanda, Torch of Defiance would be a clear number one, but Im afraid that Chandra wont have enough support around her to allow her to shine
Common (C): [Circle Symbol ] What it is: The backbone of the set
The ideal box would've had one more Full Art, but since neither a Full Art nor a Secret Rare is guaranteed, this isn't a pull spread that you can really complain about
Older set foils usually hold their value pretty well because the reprints look different enough to preserve collector value, but the Mystery Booster printings are roughly identical to the older copies