Favor of Osiris: Start with 1 win.
Mercy of Osiris: First loss forgiven.
Boon of Osiris: Next win counts as 2.
Each item cost 3 passage coins.
1) Buy all the supplies.
2) Win 1 game and the game will give you 2 extra wins.
3) Go back to Vestian Outpost aka Reef and purchase all the supplies again.
4) Do this until your passage ticket has 9 wins.