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)
They then stay there and can use the abilities written on the card, as long as you can pay their cost
Foiling a perfectly-calculated next-turn-win from a Goat or an aggro/burn deck could well make this card be quite popular
If you control a commander as you cast this spell, you may choose both instead
Read More: Everything You Need To Know To Get Into Magic: The Gathering s Final Fantasy Set Players will then be given a set amount of time to open the boosters and build a limited, 40-card deck using the cards from those packs
(Purple and Gray Starter Deck)