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)
Soon enough, you'll be standing behind an impenetrable wall of adorable little bots
9 Hans, Thirteenth in Line Small but mighty, this card can be what is exactly needed to shake things up
Virtue of Loyalty Virtue of Loyalty is at least a 2/2 flash creature for 2 mana, which is decent
(As this Saga enters and after your draw step, add a lore counter Sacrifice after III.) I Gungnir Destroy target creature an opponent controls