Simply play Warrior alongside Guardians in the early game. If you happen to 2 star Yone, definitely try going on a win streak and push levels. Level up to 4 at stage 2-1.
Keep a copy of Yone on your bench as your primary goal is to push for level 7 to roll for Pantheon and Olaf and transition your items. A Yone 2 star and 4 Guardians can keep up your board strength until that! Level up to 6 at stage 3-2.