Essentially, if you have a full party with all four of these on the board, you can pay one white, one blue, and one black mana to give the Warrior lifelink, deathtouch, and make him unblockable (deathtouch and unblockable at the same time has no real use, but thats still OP to think about)
It is estimated that the first edition print run was over five times larger than the fourth print. Jon is one of the worlds largest collectors of fourth print Pokemon cards and has carefully built up his collection over a number of years
Creatures that enter the battlefield later in the turn won't gain trample or haste
The best example of this in Adventures in the Forgotten Realms is Treasure Chest, which is a three-mana artifact
Usually the balancing factor when it comes to enchantress decks is that enchantments have to be cast most of the time and enchantment tokens are actually relatively rare