"Color fixed" cards, of course, ended up being the timeshifted cards of the set (although White Memory Lapse was a development casualty), and they do a fantastic job of conveying alternate reality to players who've been around long enough to see the originals
Sure, sometimes problems can arise, but it's rarer in Japanese sets
Weaknesses: Discards a lot of energy to maintain attack pressure
Other We may not be able to respond to requests after purchase, and this may cause problems
BPhillipYork: This is neat, sort of fun to have flying become not an asset suddenly
This last mode, as originally worded, kept your opponents from tapping their lands, which basically meant you could just cast Absorb during your opponent's upkeep step, and it would essentially force them to skip their entire turn for two mana