Creature tokens are the most common case, but nowadays we have lots of token types, including Treasure tokens, role tokens, Food tokens, Blood tokens the list goes on
Infrared side lighting is extremely useful for seeing how the foil of the Prerelease stamp reacts to the infrared light, as well as for showing any alterations that may have been made to the card
I may be reluctant to join the fight for Umbreons and Eevees, but based on the profits being made, I seem to be in the minority
Summary Magic: The Gathering cards from the Alpha Set have become extremely valuable, with even common cards worth several thousand dollars
This ability basically allows you to use your creatures as mana sources for the convoke spell, which greatly helps reduce costs if played right