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)
If it's a nonland card, create a 2/2 black Rogue creature token
Pantheon immediately stood out as major influences on competitors Dark Draft picks as they struggled both to secure and answer powerful new threats
If none were, the ability won't trigger at all
Even better, Sword of Wealth and Power makes a Treasure token when the equipped creature deals combat damage to a player, and then you get to copy the next spell you cast this turn
From Jeskai Lukka to Temur Reclamation to Sultai Midrange, Shark Typhoon was a prominent fixture of Standard from Ikoria to rotation