What's interesting is that past unsets struck a better balance
To help hammer this home, I liked the idea of the creatures having creature types traditionally associated with the color they were connected to
Phelia gets bigger when you use it to blink creatures, so Phelia becomes hard to block as it survives longer
Visions debuted at Pro Tour Paris in early 1997, the Mirage block Constructed Pro Tour best known for Mike Long defeating Mark Justice in the finals with a Cadaverous Bloom/Squandered Resources/Prosperity combo deck
My favorite of the pair is the Amethyst and Steel, which centers on Jafar, Newly Crowned and his ability to bring back characters with the Illusion keyword from the banished (dead) pile to your hand
There is not an enchantment, artifact, creature, or whatever with that ability