(Choose up to three creatures you control to be in your group until you form a new one.) Whenever you attack or block, if CARDNAME is in your group, creatures in your group get +1/+0 until end of turn
Passive card draw engines can be just as powerful and even out-perform active ones when the right combos are found
As you might expect, phasing quickly became infamous for causing confusion and arguments over rulings, forcing Wizards to publish repeated clarifications at a time when that meant waiting a month to print them in the next Duelist magazine
If a creature that's going to meld dies in response to the meld effect, the meld fizzles
The fact that it even brings back lands makes cards such as Strip Mine or fetchlands even more valuable, while also opening the door for a one-sided Armageddon or Jokulhaups if you're inclined to walk that path
The Amethyst decks foils are Merlin Shapeshifter and Tiana Celebrating Princess