Disadvantages: high volatility, risk of damage or fakes, and the need to track the market
Exiling is possible via cards like Chrome Mox, delving it, or hating it via Faerie Macabre
While it requires you to track and remember specific things each turn in order to resolve the trigger in the end step, it does remove the need to disrupt the middle of someones turn to announce triggers in the manner required by cards such as Rhystic Study or Smothering Tithe
Honestly though, it can often be better to treat Consecrated Sphinx as more of an enchantment as the card draw it provides far outvalues the added risk of removal in going to combat with this creature
At the same time, changing Gengar's shiny so many years after its introduction may be met with mixed feelings from those who like the original and are nostalgic about it, versus those who would rather see a different color for it
Kida, Creative Thinker is also an interesting card as she can move one out of two cards from the top of the Deck into the Inkwell
