Prioritize Ashe items > Tank items > leftover duo carry items (ideally Elder Dragon). Comp is very expensive so make sure you take good econ augments.

Stage 2: Slam items aggressively and play around 3 Blossom for a win streak. This is a comp you can only play from far ahead with lots of HP and resources.

Stage 3: Continue your win streak. Pick an econ augment if you have not already. Otherwise, take item augments and push levels.

Stage 4: If you have 80+ HP, you can consider losing Stage 4 and focus purely on economy. Aim to Fast 9 by end of Stage 4 / 5-1 and transition your board.